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In Geophysics, topographic factors are observations that can be directly measured, but they are often ignored to simplify the model. Studying the coseismic deformation caused by earthquakes helps accurately determine the epicenter's parameterization. It provides a reference for the reasonable layout of coseismic observation stations and GNSS observation stations. After the Mw7.8 earthquake in Nepal in 2015, GCMT, USGS, GFZ, CPPT, and other institutions released their epicenter parameter. However, according to their parameters, the coseismic displacements simulated by the spectral-element method are quite different from the GNSS observations. Firstly, this paper inverts the geometric parameters of the seismogenic fault with Nepal's coseismic GNSS displacement. The spectral-element method determines the source's location and depth under the heterogeneous terrain and outputs the source parameters. Among the results of many studies, the surface source is more consistent with the generation mechanism of large earthquakes. Secondly, this paper calculates the fault slip distribution of this earthquake using SDM (Steepest Descent Method) based on GNSS and InSAR data, which is divided into 1500 subfaults, and the moment tensor of each subfault is calculated. This paper investigates the distribution characteristics of the coseismic deformation field of the 2015 Mw 7.8 earthquake in Nepal under three different models. The results show that the influence of topographic factors is ~ 20%, and the influence of heterogeneous factors is ~ 10%. This paper concludes that the influence of topographic factors is much more significant than that of heterogeneous factors, and the influence of both should be addressed in coseismic deformation calculations. [ABSTRACT FROM AUTHOR]

The 2015 Nepal Earthquake (Mw7.8) affected more than 9000 schools in the country. Damage distribution in the 14 most-affected administrative districts shows that the construction practices were an important determent for the level of damage extended. The use of improper construction materials, lack of construction supervision, and non-compliance with the existing building codes during design and construction probably contributed to severe damage to most of the school buildings. Based on the damage analysis data and experience of the rebuilding process after the 2015 Nepal Earthquake, this paper highlights the steps to be considered during a rebuilding plan for school buildings after an earthquake disaster. Preliminary damage assessment results show that in the most-affected districts, about 86% of schools (locations) were affected by the earthquake and about one million students were out of their schools for a long time. The damage survey data indicate that about 30% of classrooms collapsed, about 13% of classrooms sustained major damage, and about 17% of classrooms sustained minor damage within the most-affected 14 districts. This damage report is largely based on the secondary data provided by the concerned government authorities. Such evidence of loss and damage in earthquake disasters provides an opportunity to learn lessons for future preparedness and to encounter disaster challenges. This work shares an experience on the rebuilding process of damaged schools and classrooms. It is expected that the experience reported in this paper will help in better planning of the seismic safety of school buildings in Nepal as well as in other similar seismically active regions. Most papers related to the 2015 Nepal Earthquake focus on overall building damage, but this paper addresses the issues of school buildings. As a case report, this paper probably lacks scientific originality, but the presentation of the damage data and the rebuilding process are the original work of the authors. [ABSTRACT FROM AUTHOR]

Purpose: The growing prominence of disaster research has also prompted vibrant discussions about the motivation and ethical conduct of disaster researchers. Yet, the individual researchers' aspirations and aims, together with the challenging and changing circumstances under which one undertakes disaster research have received relatively scant attention. Drawing on the author's personal experience of becoming a disaster researcher under the unexpected humanitarian crisis following the 2015 Nepal earthquakes, this paper seeks to contribute to the debates surrounding the role of reflexivity and ethical sensitivity in doing disaster research under the climate of uncertainty. Design/methodology/approach: The paper draws on the author's reflections and vignettes to highlight the author's experience of becoming a disaster researcher, and my trajectory of navigating the complex terrain of fieldwork. Findings: The paper underscores how the process of becoming a disaster researcher was closely intertwined with and shaped by my concerns and care for the disaster-affected communities. The paper argues that doing contextually relevant and ethically sensitive research is not a static target. It demands constant reflexivity and improvisation, in response to the unpredictable real-world conditions of disasters. Instead of aiming to tame such uncertainty, disaster researchers may benefit from appreciating and embracing uncertainty as a major facet of its epistemological distinctiveness. Originality/value: The paper contributes to the ongoing efforts in advancing methodological reflection and innovation in disaster research. In so doing, the paper is expected to aid early-career researchers who are often faced with ethical and practical dilemmas of doing fieldwork. [ABSTRACT FROM AUTHOR]

The nexus between land use and climate change is a critical aspect of sustainable development, and few places show this inter-relationship better than Nepal. This paper uses Nepal as an example to explore the interconnections between land use and climate change, highlighting the key challenges and opportunities. Nepal, with its diverse topography and ecosystems, is highly vulnerable to the impacts of climate change. The country's unique land use patterns, including agriculture, forest cover, and urbanization, play a significant role in shaping its climate resilience and carbon balance. This paper highlights the complex relationship between land use and climate change in such an environment. Balancing land use practices, conserving forests, and biodiversity, and promoting sustainable agriculture are essential for achieving climate resilience and sustainable development. The paper shows that only by addressing the nexus between land use and climate change, can Nepal move towards a more sustainable and climate-resilient future. [ABSTRACT FROM AUTHOR]

Nationalism remains a major influence on international relations in an increasingly globalised world. Many of the wars that erupted after the Cold War have their origins in ethnic tensions, border conflicts, or national aspirations. Given this, the geo-politicisation of nationalism deserves more attention in the literature. The current study aims to further the area by considering the role of territorial disputes in spawning various forms of nationalism and geopolitics. It develops an analytical framework based on the existing border dispute between Nepal and India in the 'Kalapani' region. Post-2019, the Kalapani dispute not only has represented bilateral border disputes between two entities but also reflects the overall geopolitics of the region. Similarly, it also represents the rise of 'nationalism' as a political anchor point in domestic politics in both India and Nepal. The paper based its assessment on the primary and secondary data analysis. Drawing on the data, this paper argues that border disputes between India and Nepal have two facets that signal the rising nationalism in both sides and the changing geopolitics of South Asia. [ABSTRACT FROM AUTHOR]

Ecosystem-based adaptation (EbA) is an ecologically sensitive, cost-effective, and locally adaptive climate adaptation strategy to strengthen the climate resilience of vulnerable communities. While many studies on EbA have been conducted in rural and mountainous regions or within the natural sciences realm, there is a lack of comprehensive research that assesses how urban EbA measures have been incorporated into existing policies and plans in Global South, including in Nepal. Ecosystem-based adaptation is in the early stages of its establishment as a fundamental component to address climate adaptation and sustainable development in urban environments. Accordingly, effective integration strategies, challenges, potential focal areas, and entry points have yet to be extensively studied. To address the literature gap, this paper analyses the types of EbA interventions and the extent of urban EbA integration within Nepal's climate, urban, and sectoral policies and plans. Direct content analysis and a qualitative scoring system were used to evaluate the plan components and assess the level of EbA integration. The findings indicate that the policies and plans recognise the importance of conserving, enhancing, and managing ecosystems for climate change adaptation, and EbA measures are mainly included in action-oriented sections. However, the results also reveal inadequate EbA integration, particularly in the information base, vision and objectives, and implementation aspects. The implementation component notably lacks comprehensive provisions for budget allocation, responsible authorities, definite timelines, and clear roadmaps. The breakdown of EbA integration in the policies and plans suggests that climate and urban plans substantially integrate urban EbA measures, but discrepancies exist with climate and urban policies and sectoral policies and plans. These findings collectively emphasise a pressing need to enhance the recognition and integration of urban EbA measures within policy frameworks with a view towards strengthening climate resilience and mitigating climate-related hazards in urban environments. [ABSTRACT FROM AUTHOR]

The history of mathematics education in Nepal had not been explored until the end of the twentieth century. After exploration, it was not included in mathematics curricula due to the invasion of western modern mathematics since 1853. It is quite disheartening that the students who graduated from the university remained ignorant about Nepal's mathematics education history. Against this background, the central purpose of this argumentative paper is to explore oppressive forces behind colonial meddling and envisage an alternative anticolonial proposal of the history of mathematics education. By using anticolonial critical lens as a referent, I offer four phases-classical humanists, multi-epistemic, neo-colonial, and critical discourse – by challenging the linear, neutral, and informative ways of reading and writing history. These phases incorporate Nepal's rich socio-cultural, historical, and political landscape, contribute to creating new discourses and perspectives in mathematics education, and thus reconceptualize a history of mathematics education as a means of transformation. [ABSTRACT FROM AUTHOR]

The growing need for humanitarian assistance has inspired an increasing amount of academic publications in the field of humanitarian logistics. Over the past two decades, the humanitarian logistics literature has developed a powerful toolbox of standardized problem formulations to address problems ranging from distribution to scheduling or locations planning. At the same time, the humanitarian field is quickly evolving, and problem formulations heavily rely on the context, leading to calls for more evidence-based research. While mixed methods research designs provide a promising avenue to embed research in the reality of the field, there is a lack of rigorous mixed methods research designs tailored to translating field findings into relevant HL optimization models. In this paper, we set out to address this gap by providing a systematic mixed methods research design for HL problem in disasters response. The methodology includes eight steps taking into account specifics of humanitarian disasters. We illustrate our methodology by applying it to the 2015 Nepal earthquake response, resulting in two evidence-based HL optimization models. [ABSTRACT FROM AUTHOR]

Disasters can have substantial impacts on people's livelihoods in developing countries. Further, if the need for livelihood interventions is ignored or delayed, the crisis may trigger unexpected harmful consequences in the affected households in the aftermath. Therefore, restoring livelihoods should remain a priority in the post-disaster recovery process. However, such recoveries in rural contexts and developing countries, like Nepal, are complex as the livelihood restoration process is affected by serious spatial, socio-economic, and political factors. We employed qualitative research methods in four highly affected districts in the 2015 Nepal Earthquake (7.8 Mw) to examine post-disaster livelihoods recovery. Our paper critically assesses the humanitarian response based on the narratives and lived experiences of affected households. The findings show that humanitarian assistance was crucial in addressing several unmet needs of disaster-affected rural households in resource-poor settings in Nepal. However, the interventions were generally fragmented, insufficient, neoliberal led (forcing market dependencies), and largely business-as-usual in their orientation. Previous studies in Nepal paid insufficient attention to the goods provided to affected households in the name of recovery. Therefore, our paper scrutinises selected humanitarian objects, such as power tillers, and unpacks their political economy and effectiveness in local contexts. Further, our findings show that some livelihood policies reinforced the gap between the haves and have-nots, thereby reproducing pre-disaster inequalities in the post-disaster field. [ABSTRACT FROM AUTHOR]

The 2015 Gorkha earthquake was one of the most devastating earthquakes in Nepal in this century. Postdisaster reconstruction is a complex and highly challenging process, especially concerning developing countries like Nepal, as it involves several well-coordinated plans and working activities. Due to the large scale of devastation, the Nepal government created a separate body, the National Reconstruction Authority (NRA), to manage and oversee recovery and reconstruction activities. This paper briefly discusses organizations typically involved in postdisaster reconstruction processes and the multifaceted roles they play. Document analysis on research papers, collected reports from the NRA, governmental departments, and many other organizations involved in the reconstruction was carried out. This study provides a comprehensive review of the reconstruction process after the 2015 Gorkha, Nepal, earthquake, whereas previous studies have covered a specific issue. The reconstruction works are presented structurally in detail. Similarly, the crucial steps and lesson learned for managing expectations and building back better are highlighted. This study may help to develop effective organization and policies in future postdisaster reconstruction. [ABSTRACT FROM AUTHOR]

Nepal experienced record-breaking summer monsoon precipitation in 2020, becoming the wettest year of the last four decades (1980–2020). This paper explores the role of large-scale atmospheric circulation and sea surface temperature patterns in tipping an otherwise typical wet summer into an extreme one in 2020. The unusually high precipitation was fuelled by the Western North Pacific Anticyclone (WNPAC), concomitant with the strong presence of moist static energy and enhanced vertical velocity in and near Nepal. Sea surface temperature anomalies showed an intense Indian Ocean warming and features of a La Niña, succeeding a weak El Niño event that had sustained the WNPAC. The southwesterly winds on the northern flank of then WNPAC contributed excess moisture transport and convergence to Nepal, consequently resulting in elevated precipitation. This feature is consistent with previous wet summer years, but the presence of WNPAC in those years followed the El Niño event. Therefore, it appears that the Indo-western Pacific Ocean Capacitor (IPOC) effect exerts the above-normal precipitation for the summer of 2020 without involving the El Niño event, while anthropogenic warming may have further tipped the balance. [ABSTRACT FROM AUTHOR]

Seismic risk analysis is necessary to mitigate the potential losses resulting from future earthquakes and supplement scientific risk management. In order to assist systematic evaluation and management of risk, it is indispensable to interpret risk in terms of social and economic consequences due to hazardous events like earthquakes. There is an interrelationship between hazards, physical risk, and the social characteristics of populations. Therefore, based on the existing studies focusing on each of these aspects, this paper presents the integrated seismic risk assessment along the subdivisional administrative units of Nepal using 2011 census data. The administrative unit "provinces" are subdivided into districts and each district into municipalities and village development committees (VDCs). The districts, municipalities, and VDCs were considered as our study units. In this paper, the physical or seismic risk was evaluated from the exposure model, hazard curves, and the vulnerability model of the country, whereas the social vulnerability was assessed using social vulnerability index (SoVI) methods. To formulate the physical risk, the assets used were five types of buildings under the exposure model. This model was combined with the physical vulnerability functions of the building and the hazard curves of the country. The result of the physical risk has been presented as annual average loss (AAL). Similarly, among 92 social vulnerability variables, 54 variables were reduced to 7 weighted parameters using principal component analysis (PCA). The scores of a total of 45 parameters were used to evaluate the SoVI index, which was further combined with the physical risk to evaluate integrated risk. The results showed that populated cities like Kathmandu, Hetauda, and Janakpur have a highly integrated risk index. Similarly, the Terai region bordering its neighbor India and some parts of the central hilly region are highly vulnerable, while most parts of the mountainous region in the central and eastern regions are the least vulnerable. The results from the present study can be utilized as a part of a comprehensive risk management framework at the district level to recuperate and recover from earthquakes. [ABSTRACT FROM AUTHOR]

Purpose: This paper aims to critically examine the post-disaster emergency response amongst marginalised and disadvantaged social groups following the 2015 Nepal Earthquake (7.8 Mw). Design/methodology/approach: A qualitative research method was employed by conducting interviews with disaster survivors from marginalised and ethnic social groups, humanitarian aid workers and government officials in the four districts worst hit by the 2015 Nepal Earthquake. Findings: This research found that community members demonstrated remarkable cooperation in the aftermath of the disaster; however, caste-based discrimination still manifested in post-earthquake emergency environments. Further, this research showed that the engagement of government and local and international humanitarian organisations was noteworthy in the earthquake emergency response in Nepal as it localised relief packages and adapted the assistance corresponding to the fast-changing post-disaster environments. However, some relief materials were culturally inappropriate and climatically unsuitable. This paper also shows that the poor dissemination of relief distribution plans, resource duplication and ineffective targeting disproportionately impacted the oppressed and marginalised households in receiving humanitarian assistance. Originality/value: Studies have been undertaken on the emergency response to the 2015 Nepal Earthquake, however, few have focussed on the lived experience of marginalised and disadvantaged social groups. Further, this research builds on, and contributes to, the humanitarian mobile sovereignty discourse. [ABSTRACT FROM AUTHOR]

An earthquake of moment magnitude (Mw) 7.8, the largest in the last 80 years, struck central Nepal on April 25, 2015. Named the Gorkha earthquake, it wreaked havoc on the country's central region, affecting 32 of 77 districts. The earthquake impacted nearly a million private houses, thousands of educational infrastructures, hundreds of health facilities, myriad cultural heritages and many other infrastructures. The National Reconstruction Authority (NRA) was established to lead the post-earthquake recovery and reconstruction and complete it within five years. This paper presents details of the earthquake's effects, the early response and the status of the post-earthquake reconstruction progress five years after the earthquake. Official reports from Nepalese government institutions, national and international authorities, government databases and research papers on the Gorkha earthquake were reviewed. The numbers of various infrastructures reconstructed and under construction each year after the earthquake and the reconstruction processes adopted are presented. The results show that 67% of private houses, 74% of educational institutions and 58% of health facilities were reconstructed in the five years. [ABSTRACT FROM AUTHOR]

Copyright of Disasters is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The purpose of this paper was to understand how Twitter users responded to the cultural heritage damaged during the 2015 Nepal earthquake. This paper utilizes 201,457 tweets (including retweets) from three different data sets. The analysis shows that approximately 4% of tweets were regarding cultural heritage. Moreover, asymmetrical information was available on Twitter regarding cultural heritage during the Nepal earthquake, that is not every site received equal attention from the public. Damaged sites received more attention than unaffected sites. The content of tweets can be divided into five categories: information, sentiment, memory, action and noise. Most people (89.1%) used Twitter during the disaster to disseminate information regarding damaged cultural heritage sites. [ABSTRACT FROM AUTHOR]

Copyright of Disasters is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Disasters is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

From celestial objects to every feature on Earth, geodesy provides a reference frame and is the foundation for surveying, mapping, and other geoscience activities. In Nepal, geodesy was officially introduced after 1924 to prepare the topographic map series. Although the previous geodetic project occurred with foreign assistance, Nepal is using national resources to conduct milestone projects such as the re-measurement of Mount Everest height in 2020 and the ongoing LiDAR survey of western Terai. Taking the 2015 Gorkha earthquake as a reference, this paper reviews the past and present geodetic activities in Nepal. It presents the history of conventional Nepal datum as a horizontal datum and Indian mean sea level-based vertical datum, and modern satellite geodesy works on the Himalayas. Considering recent earthquakes, continuous crustal motion, international and global compliance, and increasing demand for precise positional accuracy from the users and stakeholders, this paper discusses future directions to build, establish, maintain, and operate modern terrestrial, height, and gravity reference systems and frames. This paper consolidates many reports and experiences from Nepal and will serve as useful documentation for newcomers whose interests align in geodesy and Nepal. [ABSTRACT FROM AUTHOR]

In Nepal, historic earthquakes have shown extensive liquefaction in different areas of the country, including its capital, Kathmandu Valley. The 1833 and 1934 earthquakes caused significant harm due to liquefaction. An earthquake of moment Mw7.8 struck on 25 April, 2015, keeping the epicentre at the central part of Nepal. Although damages due to liquefaction were limited, several surface manifestations were observed at various places in the valley. This paper summarises the field reconnaissance concerning the liquefaction cases in Kathmandu after the mainshock. The field observations, alongside results from liquefaction evaluation, contrasts with the previous liquefaction studies conducted before the 2015 Earthquake for the valley. To evaluate the irregularity of existing maps with the ground manifestations caused by the 2015 Gorkha earthquake, we utilised the geotechnical database gathered from 400 locations before the quake and 10 boreholes drilled before the 2015 Gorkha earthquake to conduct quantitative analyses and modelling using simplified procedure by Idriss and Boulanger (2008). Likewise, the susceptibility of affected zones to liquefaction during the 2015 Gorkha earthquake is depicted, and utilized standard technique is validated to estimate liquefaction hazard in Kathmandu Valley. [ABSTRACT FROM AUTHOR]

This paper investigates the possible relationship between solar activity and monthly rainfall in Pokhara and Kathmandu cities in Nepal from the year 1968 to 2023. The study uses Cross Correlation Analysis (CCA) and wavelet analysis, the Cross-Wavelet Transform (XWT) and Wavelet Transform Coherence (WTC), to analyze the time series data. The CCA shows a strong positive correlation between the solar cycle and rainfall trend, with correlation coefficients of 0.77 and 0.76 and time lags of 18 months and 14 months at Pokhara and Kathmandu, respectively. The p-values, calculated to be < 0.0001 through the t-test, indicate that the observed correlations are statistically significant. The XWT results show a long-term ∼ 11-year common periodicity in solar cycle and rainfall. The WTC analysis confirms the local correlation between these two time series in time–frequency domain at a common periodicity. The results indicate that the monthly rainfall pattern in Nepal is closely related to the solar cycle pattern. Thus, solar activity likely plays a role in influencing rainfall trends in Nepal. This study shows that solar-climate interaction on a regional scale is complex and emphasizes the importance of understanding these relationships for predicting and managing climate change. [ABSTRACT FROM AUTHOR]

Sudden natural disasters can create a massive need for immediate relief and long-term reconstruction efforts. Such support can come from various individuals and organizations, both within the country where the disaster occurred and increasingly from abroad. An important group who are becoming more active in providing such support of money and materials are the migrant and diaspora population living in other countries. This paper examines the role of Nepali migrant and diaspora population living in the United States after the 2015 earthquake in Nepal in their remitting behaviour, both in private and towards donations. Based on a web-based survey response analysis, this paper finds that the respondents were actively involved in sending back money to their families and towards relief efforts in Nepal after the earthquake but a strong trust deficit among the diaspora population in the US and agencies related to the Nepali government is also noted. [ABSTRACT FROM AUTHOR]

Copyright of Disasters is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Making reference to recent scholarly discussions on neoliberalism and disaster recovery, in this paper I discuss how the implemented neoliberal doctrines of governance have reinforced the existing asymmetrical power relationships between the state, international agencies and citizens. This process constitutes a major barrier to achieving sustainable recovery after the 2015 Nepal earthquake. In particular, three issues, namely the risk of disempowering local communities' capacity, lack of commitment to long‐term recovery, and commodification of the recovery process, have resulted that the recovery policy basically favours the interests of international donors, and NGOs, not those of local communities. To achieve sustainable recovery, post disaster interventions must be socially inclusive. Local affected communities should be meaningfully engaged, and that social learning and sustainability transformation should be enabled as these are key processes at the core of community resilience and of any community resilience‐building strategy. [ABSTRACT FROM AUTHOR]

This paper investigates how variations in sediment supply, grain size distribution and climate change affect channel morphology and flood inundation in the Nakkhu River, Kathmandu, Nepal. Climate change‐induced extreme rainfall is expected to increase flood intensity and frequency, causing severe flooding in the Kathmandu basin. The upper reaches of the Nakkhu River are susceptible to landslides and have been impacted by large‐scale sand mining. We simulate potential erosion and deposition scenarios along a 14 km reach of the Nakkhu River using the landscape evolution model CAESAR‐Lisflood with a 10 m digital elevation model, field‐derived sediment grain size data, daily discharge records and flood forecast models. In a series of numerical experiments, we compare riverbed profiles, cross‐sections, flood extent and flow depths for three scenarios (1.2‐, 85‐ and 1000‐year return period floods). For each scenario, the model is first run without sediment transport and then with sediment transport for three grain size distributions (GSDs) (observed average, finer and coarser). In all cases, the inclusion of sediment led to predicted floods of a larger extent than estimated without sediment. The sediment grain size distribution was found to have a significant influence on predicted river morphology and flood inundation, especially for lower magnitude, higher probability flood events. The results emphasise the importance of including sediment transport in hydrological models when predicting flood inundation in sediment‐rich rivers such as those in and around the Himalaya. [ABSTRACT FROM AUTHOR]

Unreinforced Masonry buildings (URMs) were the most prevalent construction practice in the rural areas of Nepal. During the 2015 Gorkha earthquake, most of these buildings suffered critical damage. Consequently, after the disaster, National Reconstruction Authority (NRA) was established to provide technical and financial assistance in the reconstruction process. This paper provides a qualitative framework for the assessment of masonry residential buildings in rural areas, considering the NRA minimum requirement, with Bhalche, Nuwakot as the study area. Rapid Visual Screening (RVS) and Key Informant Survey (KIS) were used to study, inspect and collect data and obtained results are compared with NRA minimum guidelines and Codal provisions. The study focuses only on a small but representative sample of reconstructed buildings rather than every building, with how and why of a particular issue rather than how many. The examination found that the reconstructed buildings in Bhalche have minor noncompliance issues, while significant noncompliance issues are found in all the houses constructed before the Government of Nepal's(GON) initiatives for reconstruction by the local people themselves using available local resources and existing knowledge. The KIS and RVS results are supported by case study examples and photos, respectively. The study also reviews the current building typology in Bhalche and attempts to delineate the rationale contributing to the undesired discrepancy in reconstructed buildings. [ABSTRACT FROM AUTHOR]

Every year, thousands of people around the world who face unequal access to political and social power and resources lose their lives and/or livelihoods in natural hazard events. As a result, the reduction of vulnerability has become a central concern of humanitarian actors. This paper analyses the impact of humanitarian assistance on vulnerabilities in Nepal following the Gorkha earthquake on 25 April 2015. The causes and manifestations of vulnerability before and after the disaster are determined through the application of the Pressure and Release model and the adoption of a mixed‐methods research approach. The findings of the study reveal that 20 months after the earthquake, humanitarian assistance had not had any long‐term positive influences on the root causes of the phenomenon, and that vulnerabilities at the micro level could be resolved in part. To diminish the extent of disasters in the future, however, the fundamental reasons for the vulnerability have to be addressed better. [ABSTRACT FROM AUTHOR]

Nepal possesses a good solar resource, and there has been increasing interest in the use of photovoltaic systems. About 1.1 million solar home systems, rated at nearly 30 MWp, have been installed across Nepal. With the introduction of net metering by the Nepal Electricity Authority, an increase in rooftop photovoltaics (RPV) is expected. However, to inform any policy developments around increased electricity generation, and the uptake of RPV, there is a need to quantify the potential of such systems (a situation mirrored in many developing countries). To this end, this study utilized a hierarchical geospatial technique based on open-source data to estimate the potential output from RPV in several cities in Nepal (Kathmandu, Pokhara, Butwal, Nepalgunj, and Biratnagar). It was found that the potential theoretical output of RPV ranged from 637 GWh per annum, in Kathmandu, to 50 GWh per annum in Butwal. Moreover, the total RPV potential from urban households of Nepal was estimated to be in the order 6.5 TWh per annum. As such, the findings of this paper can be used to make informed policy decisions about the future of Nepal's energy mix. [ABSTRACT FROM AUTHOR]

This paper presents a comprehensive picture of extreme precipitation across Nepal from 1976 to 2015 based on high‐quality daily precipitation observations from 28 precipitation stations spatially distributed across the country. We computed 11 extreme precipitation indices. The selected indices allow the analysis of extreme events (such as flood/inundation) related to heavy precipitation and evaluate the linkage with indications of agricultural production and drought (such as consecutive dry and wet days). Using a simple daily intensity index (SDII) and the number of days with daily precipitation ≥10 mm (R10), along with the total amount of annual precipitation (PRCPTOT), we summarized the distribution of the wet periods of the year at different locations. We divided the study period into two halves (T1: 1976–1995 and T2: 1996–2015) to examine the temporal mean, trends, and their shift. We emphasized the changes in those indices between these two periods across the country. Our results show that although the amount of precipitation (in terms of PRCPTOT and SDII) did not change significantly between the two periods (i.e., T1 and T2), there exists a clearly increasing trend of extreme precipitation indices in T2 compared to T1. In addition, the consecutive dry days show the rising tendency of elongated dry spells that can adversely affect plant/crop growth in the future. Our study recommends the need for effective management of both precipitation extremes (i.e., drier and wetter), for instance, by introducing irrigation facilities and flood mitigation measures. Plain Language Summary: We computed different precipitation indices using daily data from 28 precipitation stations spatially distributed across Nepal to obtain a clear picture of extreme precipitation from 1976 to 2015. We divided the study period into two halves of 20 years each. This study emphasizes the changes in magnitudes and trends of extreme precipitation between the two periods. Overall, we find that heavy precipitation indices increased significantly in the later period. Notably, dry spells (i.e., no rainfall) for consecutive days showed a remarkably increasing trend. Our results indicate the need for mitigation of this extreme precipitation to prevent both floods and drought. Key Points: We divide the study period (1976–2015) into two halves to analyze precipitation patterns and their shiftWe emphasize changes in the precipitation indices across the country between the two periodsWe find a clearly increasing trend of extreme precipitation indices in the recent period when compared to the earlier one [ABSTRACT FROM AUTHOR]

Occasionally, events occur that disrupt ongoing fieldwork, forcing researchers to deal with, and adapt to, new realities. In this paper, we discuss how the 2015 Nepal earthquake – which occurred while we were conducting fieldwork in one of the affected areas – forced us to reassess our research agenda, profoundly affected our relationship with the community we had been working in, and evoked challenging ethical questions in respect to our obligations to our research participants. Fieldwork often takes place in dynamic, uncertain environments. This is especially true of fieldwork in developing countries. Occasionally events can occur that have significant repercussions for ongoing research involving human participants. For example, political and social unrest, terror attacks, economic crises, epidemics, and natural disasters all have the potential to derail fieldwork plans and to radically alter the circumstances in which researchers operate. However, literature on how to anticipate and navigate these repercussions is limited. While a number of papers have reflected on the difficulties of conducting post‐crisis fieldwork, few have discussed the rather different challenge of dealing with, and adapting to, events that occur during ongoing work. In this paper, we discuss how the 2015 Nepal earthquake – which occurred while we were conducting fieldwork in one of the affected areas – forced us to reassess our research agenda, profoundly affected our relationship with the community we had been working in, and evoked challenging ethical questions in respect to our obligations to our research participants. Based on our reflections, we suggest eight issues that researchers who are engaged in fieldwork in high‐risk or post disaster locations should give consideration to. The issues include matters relating to research design, fieldwork risk and ethics assessment, interaction with research participants, and researcher support. [ABSTRACT FROM AUTHOR]

How does male out‐migration impact women's experience of post‐disaster reconstruction? This paper employs survey data collected by Nepal's Housing Recovery Reconstruction Platform in 2018 to establish robust associations between male out‐migration and three indicators of women's participation in rebuilding their private houses after the 2015 Gorkha earthquake: (i) knowing where to consult for information; (ii) visiting a local government official by oneself; and (iii) signing a rebuilding agreement with the local government. Twenty‐six semi‐structured interviews conducted in 2022 further revealed that women whose husbands were abroad undertook roles that they would not have performed had their spouse been present, including in relation to management and decision‐making. However, the interviews also highlighted challenges that women had to overcome, such as a lack of knowledge of procuring materials and difficulties leading the process as a woman. This study advances the literature by establishing a relationship between male out‐migration and variation in women's post‐earthquake rebuilding experiences. [ABSTRACT FROM AUTHOR]

The 2015 Mw 7.8 Gorkha (Nepal) earthquake induced prolonged postseismic deformation extending northward beyond the Yarlung Zangbo Suture, which provides unique opportunities to better understand the lithospheric rheology in Himalaya and southern Tibet. Here, we used the first 5‐year Global Positioning System observations to study the main postseismic processes following this event, including viscoelastic relaxation and afterslip, based on a three‐dimensional finite element model. We considered a realistic geometry of the underthrusting Indian plate according to various geophysical images. We found that the models with a uniform elastic Indian lower crust fail to fit the vertical displacements. A heterogeneous Indian lower crust with the transition from elastic (high‐viscosity) to low‐viscosity approximately under the Main Central Thrust is required to reproduce the observed postseismic uplift between China‐Nepal border and Peiku Lake, indicating the weakness of the Indian lower crust from the Lesser to High Himalaya. The afterslip simulated using a weak shear zone takes place in the adjacent area downdip of the rupture zone. The preferred model suggested that viscosities of the Tibetan lower crust, weakened Indian lower crust, and shear zone are 3 × 1018, 1019, and 4 × 1018 Pa s, respectively. The viscosity of the underthrusting Indian upper mantle was roughly estimated to be greater than 1021 Pa s. The model results imply that the near‐field deformation is dominated by both afterslip and viscoelastic relaxation of the weakened Indian lower crust, not only afterslip as suggested by previous studies. Plain Language Summary: On 25 April 2015, an Mw 7.8 earthquake occurred in the central Himalayan area (near Gorkha). Global Positioning System (GPS) measurements show that the induced postseismic deformation extends northward beyond the Yarlung Zangbo Suture. In this paper, we considered the postseismic displacements within 5 years after this earthquake and studied the two main postseismic processes (afterslip and viscoelastic relaxation of the lower crust and upper mantle) using finite element modeling. We explored the parameters governing afterslip and viscoelastic relaxation of the lower crust and upper mantle beneath Himalaya aiming to fit GPS observations. We found that an Indian lower crust with the transition from elastic to low‐viscosity approximately under the Main Central Thrust is necessary to explain the observed uplift between China‐Nepal border and Peiku Lake. The postseismic deformation of the 2015 Gorkha earthquake provides independent evidence for the weakness of the Indian lower crust from Lesser to High Himalaya, which is of great importance to understand the uplift evolution of the Himalaya and Tibetan Plateau. Key Points: We study the postseismic viscoelastic relaxation and afterslip due to the 2015 Mw 7.8 Gorkha earthquake by finite element modelingA heterogeneous Indian lower crust is required to reproduce the observed postseismic uplift between China‐Nepal border and Peiku LakeThe modeling results reveal the weakness of the Indian lower crust from the Lesser to High Himalaya [ABSTRACT FROM AUTHOR]

This paper analyzes the seismic vulnerability of vernacular Newari buildings in Nepal. Based on the damage statistics and failure modes recorded during 1934, 1988, 2011, and 2015 earthquakes, damage probability matrices and seismic fragility functions are derived in this paper. Notable seismic features of the Newari buildings are identified and reported using forensic approach. The result of this study highlights that the vernacular Newari buildings are highly vulnerable in the case of minor to major earthquakes; however, the seismic features have contributed to downscale the damage extent. [ABSTRACT FROM AUTHOR]

Critics have long questioned the push for professionalised and performance‐driven accountability in the humanitarian sector, yet the matter is largely treated as a 'back office' issue of standards, guidelines, and processes. Scant attention is paid to the accountability demands experienced by early responders to disasters. Set in the contested climate of the emergency response to the earthquake in Nepal on 25 April 2015, and drawing on interviews with 15 early responders, this paper reveals three forms of accountability demands: (i) accountability as compliance; (ii) accountability as the object of government regulation; and (iii) accountability as public opposition and interrogation. Beyond the performance‐centric, non‐governmental organisation‐driven understanding of accountability, early responders to the earthquake experienced multidirectional accountability demands, not only from donors and beneficiaries, but also from the national government and wider public. Engaging with public criticism is a significant feature of early responders' responsibility that warrants further consideration by the humanitarian community. [ABSTRACT FROM AUTHOR]

Nepal is a sensitive earthquake zone. On April 25, 2015, there was an Earthquake of 7.8 Mw. After that, more than 30 aftershocks of above 5 Mw occurred. One of the aftershocks was of 7.3 Mw which occurred on May 12. In this paper, the damages in the tunnel of the Melamchi water supply project due to this earthquake were assessed. Cracks were observed on the inside surface, wall, and crown of the tunnel. Distribution and characteristics of these seismic damages were investigated and summarised to assess potential influencing factors. The damages are categorized into the following patterns: lining cracks and spalling. Lining cracks are further divided into longitudinal cracks, transverse cracks, ring cracks, and inclined cracks. Influencing factors are discussed with respect to Earthquake parameters mainly being magnitude, depth and distance to epicenter. This paper presents the pattern of seismic damages occurred for different overburden depths and different rock types. Here, the analysis is done by observation and categorization of damages for different aspects of considered factors and there are some unusual results in damages for varying overburden depths. There were few unusual results as in the damage distribution for overburden depth and also for different rock types. The reason may be the occurrence of many considerable aftershocks and epicenter being very near, so the damages may have been accumulated after each shock. Also the distribution of rock types have influenced the damages. So one influencing factors may have its effects on the results while considering the other factor. [ABSTRACT FROM AUTHOR]

The Western Carpathians and Himalayas belong to the same global Alpidic orogenic system, which is the result of Euroasian plate collision with the continental fragments of Gondwana after closing of the Tethys ocean. Having the field experiences from both distant mountain ranges of the same orogenic system and applying the principles of comparative tectonics, they were evaluated and compared in the paper. Generaly, they have the same collisional structural-tectonic style, but there are as well many peculiarities and differences resulting from the specific conditions of collision in the Western Carpathian and Himalayan areas. The Western Carpathians structure is a result of gradual alternation of Variscan (Hercynian; Paleozoic), Paleo-Alpine (Mesozoic) and Neo-Alpine (Cenozoic) convergent and divergent plate tectonic processes, while the Himalayas represents purely Neo-Alpine Cenozoic structure evolved during the continual long lasting and rapid plate convergence. Despite the geosutures from the earlier orogenic evolutions are known in the parallel north-located zone, too. As the most important factors, influencing character of collision, seems to be the geometry of converging plate margins and the rate of the ocean floor spreading/subduction, driving the orogenesis. Paper gives a brief overview of tectonic architecture and evolution of both mountain ranges and compares their common features and contrasts. [ABSTRACT FROM AUTHOR]

Sustainability of school infrastructure and resilience of educational communities to natural hazards are of paramount importance to provide the safety and protection against various natural and man-made threats children face. The 2015 Nepal earthquake and its impact on schools confirms this approach at multiple levels, since schools are built as structures, supported as financial entities by the state, and function as social clusters within each community. In the literature, there are various guidelines and frameworks for safety and resilience of schools. Notable amongst these, the UNISDR's Comprehensive School Safety Framework consists of three pillars including safe school facilities, school disaster management and risk reduction education. A systems perspective requires a holistic approach to resilience of schools incorporating the safety of school buildings, governance and funding, provision of supporting infrastructure, school curriculum and more importantly, the resourcefulness of educational communities. The purpose of this paper is two-fold: first, to present a quantifiable, holistic framework for the resilience of schools, and second, to demonstrate how the framework is rooted in a systems thinking perspective. The novelty of the proposed framework lies in resilience assessment using a participatory, multi-disciplinary and holistic approach tailored to the salient features of a low-income country. This work is part of a Special Issue on Systems Perspectives: Clarity through Examples (see Dias 2023). [ABSTRACT FROM AUTHOR]

While the energy sector is the largest global contributor to greenhouse gas (GHG) emissions, the agriculture, forestry, and other land use (AFOLU) sector account for up to 80% of GHG emissions in the least developed countries (LDCs). Despite this, the nationally determined contributions (NDCs) of LDCs, including Nepal, focus primarily on climate mitigation in the energy sector. This paper introduces green growth—a way to foster economic growth while ensuring access to resources and environmental services—as an approach to improving climate policy coherence across sectors. Using Nepal as a case country, this study models the anticipated changes in resource use and GHG emissions between 2015 and 2030, that would result from implementing climate mitigation actions in Nepal's NDC. The model uses four different scenarios. They link NDC and policies across economic sectors and offer policy insights regarding (1) energy losses that could cost up to 10% of gross domestic product (GDP) by 2030, (2) protection of forest resources by reducing the use of biomass fuels from 465 million gigajoules (GJ) in 2015 to 195 million GJ in 2030, and (3) a significant reduction in GHG emissions by 2030 relative to the business‐as‐usual (BAU) case by greater use of electricity from hydropower rather than biomass. These policy insights are significant for Nepal and other LDCs as they seek an energy transition towards using more renewable energy and electricity. [ABSTRACT FROM AUTHOR]

A destructive earthquake of moment magnitude Mw 7.8 struck central Nepal on April 25, 2015, followed by hundreds of aftershocks. A preliminary report of the Department of Archaeology (DOA), Nepal, suggested that as many as 745 monuments in 20 districts were affected. The heritage structures are crucial sectors for development, mainly through tourism and employment generation. However, over three years following the Gorkha Nepal earthquake, many collapsed heritage structures were not reconstructed. This paper explores the progress of heritage reconstruction in Kathmandu Valley along with the reasons behind the slow reconstruction process. Ethnographic fieldwork was carried out in the seven UNESCO listed heritage sites and other heritage areas over six months from November 2019 to April 2020. The research shows that the delay in heritage reconstruction was primarily due to the lack of a well-defined policy for heritage reconstruction; conflict on construction materials to be used for reconstruction; procurement modality for reconstruction; limited governance capacity; lack of workforce for traditional artwork; and the lack of a framework to support community-driven rebuilding initiatives. Some recommendations are made to accelerate the reconstruction of heritage structures in Kathmandu Valley. [ABSTRACT FROM AUTHOR]

Confined masonry (CM) structures have been widely adopted by many developing countries located in seismically active regions due to their satisfactory seismic performances, cost-effectiveness and ease of construction; for example, the construction of CM structures in Nepal after the 2015 earthquake by Smart Shelter Foundation (SSF) to provide affordable structures with reliable seismic performance. However, as CM is a much less researched topic compared to other types of structures, some of the design provisions from codes and practices adopted by SSF for their CM structures are ambiguous or even appear contradictory. Hence, the research presented in this paper has been conducted in response to SSF's request to investigate the effectiveness of the adopted design and construction methods of their CM structures. In the experiment, three CM specimens constructed following the design provided by SSF was subjected to in-plane cyclic loading with two cycles per drift at 1.0% increment until a 20% drop in maximum strength was attained to investigate the effectiveness of toothed wall-to-column connections and effects of a window opening in the masonry panel. Toothed wall-to-column connections may not provide significant improvement to the in-plane seismic response, but provision of a lintel band above an opening can alleviate the detrimental effect. [ABSTRACT FROM AUTHOR]

This paper examines the online communities that emerged as a result of the 2015 Nepal earthquake. Most research around social media for emergency management focuses on its use in developed countries, overlooking underdeveloped countries with skewed Internet geographies.To address this gap, this study explores the communication dynamics of online communities formed in response to the Nepal disaster. Through a combination of virtual ethnography and offline interviews, the study identifies online participation patterns, and humanitarian actions undertaken. Traditionally, there have been two major actors involved in disaster intervention in Nepal, the Government and the affected citizens. While they still hold a primary position in disaster response, online communities have emerged as new actors, supporting citizens and intervention agencies in humanitarian aid distribution. Using frameworks of crisis communication, this study finds that despite its limited use, social media created new dynamics within (a) citizen participation; and (b) actors, networks and communication. [ABSTRACT FROM AUTHOR]

An amendment to this paper has been published and can be accessed via a link at the top of the paper. [ABSTRACT FROM AUTHOR]

This paper introduces a new methodology to evaluate the performance of rural road networks when a link in the network is disrupted due to events such as natural disasters, accidents, and maintenance closures. As a measure of network resilience, we propose a simpler approach to quantify redundancy by introducing two indices that link the concept of road network redundancy with the increase in travel distance of the overall network when a road link fails. We apply the problem formulation to a real-world rural road network which was heavily affected by the 2015 Gorkha Earthquake in Nepal. Based on the results from our analyses, we found these indices easy to use, pragmatic, and reliable for the case under study. With the proposed tool, decision-makers can predict and monitor the performance of rural road networks for pre-disaster (or pre-disruption) planning, thereby ensuring the smooth connectivity for goods and services during emergencies. [ABSTRACT FROM AUTHOR]

The aim of this paper is to identify, also through micro tremor analysis and numerical analysis, the collapse's mechanisms of the Nepalese wood-masonry monuments damaged by the 2015 seismic event that struck Kathmandu and its valley. The research analyses two case studies: The Radha Krishna and the Bhimsen Temples. After a careful anamnesis based on visual inspection and hypotheses on the temple's structural behaviour, a global dynamic ambient test (micro tremor) was carried out for qualitative characterisation of the structural system, residual stiffness and strengths. First, numerical models have been calibrated on mechanical parameters present in literature. The difference between experimental results and numerical model values is higher than 100% in the Radha Krishna temple and 70% in the case of Bhimsen temple. Considering this results, the models were calibrated on the experimental results. The modal analysis shows important mixed effect of torsional and flectional mode in the case of the Radha Krishna temple while in the Bhimsen temple local effects prevail. The capacity curve of Radha Krishna temple shows behavior close to collapse at 0.26 g, while the Bhimsen temple presents important damage at 0.3 in Z direction and 0.23 in X direction. [ABSTRACT FROM AUTHOR]

Based on spatial variation and time, climate change has various levels of impacts on different communities and sometime with the state of development as well. The rural mountainous households that depend on natural resources for subsistence livelihoods and agriculture are particularly vulnerable with changing climate. Livelihood vulnerability assessment at local level is imperative to formulate appropriate adaptation policy and programs to address their livelihood challenges. This paper explored two vulnerability assessment indices, livelihood vulnerability index and IPCC vulnerability index by surveying 150 households from three village development committees (VDCs) in Lamjung district, Nepal. Data related to climate variables, natural disasters, water and food security, health, socio-demographics, livelihood strategies, and social network were collected and combined into indices. Both indices differed based on well-being status, gender of the household head and location across the households of three VDCs. The analysis was based on indices constructed from selected indicators measuring exposure, sensitivity, and adaptive capacity. Results indicated that very poor and poor households, and female-headed households were more vulnerable than medium, well-off and male-headed households. The availability of livelihood diversified strategies, education, establishment of early warning system to climate extreme will help to reduce vulnerability to climate change in the study areas. The findings help in designing priority areas of intervention for adaptation plan to reduce vulnerability and enhance the resilience of the mountainous households to climate change. [ABSTRACT FROM AUTHOR]

The 2015 Gorkha earthquake in Nepal damaged more than 28,000 school buildings across the affected areas. Nepali school buildings can broadly be categorized into special moment-resisting frame, brick masonry, stone masonry, timber, and composite construction (steel and masonry). This paper proposes a new methodology to designate seismic vulnerability of these building categories. The proposed methodology is based on the field study of around 3389 school buildings in central Nepal. Structural, non-structural, architectural, site conditions, seismic enhancement and retrofitting, and multi-hazard parameters are incorporated to develop a scoring system. Indexed based system is introduced using sensitivity analysis which allows the designation of total vulnerability scores to individual buildings. The scores are modified based on the level of seismic strengthening/retrofitting. Based on the total vulnerability score, a qualitative vulnerability level is assigned to the individual building. The results highlight that more than 90% of Nepali school buildings are moderate to very highly vulnerable. [ABSTRACT FROM AUTHOR]

The residential building typology of Stone in Mud Mortar (SMM) masonry contributed significantly to the seismic losses caused by the 2015 Nepalese seismic sequence, also known as the 2015 Gorkha earthquake. SMM masonry is the most common construction type in Nepal, and notwithstanding the extensive damage, this has persisted in the post-earthquake reconstruction. This paper provides first an overview of the extent of damage and typical failure modes suffered by this typology. Some pressing issues in the ongoing post-earthquake reconstruction, such as building usability, construction quality are then discussed. The results of seismic analyses on both the pre-earthquake (PRE-SMM) and post-earthquake built (POST-SMM) typologies, using the applied element method employing a modelling strategy that accounts for the random shape of stone units, are then presented and discussed in terms of capacity curves and failure mechanisms. As per the seismic design code of Nepal, seismic performance assessment is conducted to understand the seismic design levels of these constructions. Finally, seismic fragility and vulnerability functions for both the PRE-SMM and POST-SMM typologies, considering the uncertainty in ground motions and material quality, are presented and discussed. Considering the seismic hazard in Nepal, the PRE-SMM typology is found to be highly vulnerable and seismic strengthening of these buildings is urgent. On the other hand, the POST-SMM typology has adequate seismic capacity and performs within the serviceability limit, given the quality of both the construction materials and workmanship are not compromised. [ABSTRACT FROM AUTHOR]

The recent developments in Nepal's politics from the abolition of autocratic monarchy, promulgation of a new constitution to successful completion of local, provincial, and federal level elections can be perceived as Nepal's politics achieving miraculous success in forming democracy. Throughout the history, heavy reliance on the Indian economy has been considered as a major hurdle to Nepal's sovereignty. This paper analyzes the Nepal-India relationship through path-dependent theory and argues that with series of above mentioned democratic success, the contemporary Nepali foreign policy towards India is at a critical juncture where Nepal can incorporate new changes to make its policies independent and uninfluenced by the Indian government. Analyzing the series of political and democratic events and foreign policies implemented to date, this paper aims to understand how the Nepali leadership can utilize these recent series of democratic successes as a turning point to break the traditional approach of forming policies to appease the Indian government and receive political and economic support and implement new policy changes leveraging on the multilateral organizations and developmental partners for its support economically and politically. [ABSTRACT FROM AUTHOR]

The efficient and effective response to disasters critically depends on humanitarian supply chains (HSCs). HSCs need to be flexible to adapt to uncertainties in needs, infrastructure conditions, and behavior of other organizations. The concept of 'network flexibility' is, however, not clearly defined. The lack of an unanimous definition has led to a lack of consistent understanding and comparisons. This paper makes a threefold contribution: first, it defines the concept of network flexibility for HSC in the context of sudden onset disasters. Second, it proposes a framework to measure network flexibility in HSCs. Third, we apply our framework to the 2015 Nepal earthquake case and provide evidence-based insights regarding how humanitarian organizations can improve network flexibility in HSCs. Our analyses for Nepal case show that delivery, IT support, and fleet criteria have the most influence on flexibility. Also, the application of our framework on the downstream network of nine humanitarian organizations shows low levels of network flexibility in all but one. This finding explains why several disruptions happened in relief distributions during the Nepal response. [ABSTRACT FROM AUTHOR]

This paper reports the structural failures and collapse of heritage structures in Kathmandu Valley, Nepal, during the 2015 Nepal earthquake, and presents preliminary findings regarding the causes of failures and collapses. Field reconnaissance was carried out immediately after the main shock (Mw 7.8) on April 25 and the strongest aftershock (Mw 7.3) on May 12. It was observed that the performance of heritage structures was influenced by the combination of several factors, including structural and architecture type, configuration and structural deficiency, local site effects and ground-motion characteristics, age and maintenance level, material quality, etc. It was observed that dome structures performed very well, followed by pagoda (tiered temple), and shikhara structures were found as the most vulnerable structures. Moreover, it was observed that structures that had been seismically retrofitted and well maintained appeared to perform well. Some recommendations are made to improve the seismic performance of the heritage structures in Kathmandu Valley. [ABSTRACT FROM AUTHOR]