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Stress state in the largest displacement area of the 2011 Tohoku- Oki Earthquake

Authors :
Christie D. Rowe
Ken Takai
Shuichi Kodaira
Becky Cook
Tsuyoshi Ishikawa
Lena Maeda
L. Anderson
Yasuyuki Nakamura
Emily E. Brodsky
Yoshinori Sanada
Weiren Lin
Toshiaki Mishima
Virginia Toy
Yukari Kido
Francesca Remitti
Sean Toczko
James D. Kirkpatrick
Tamara Jeppson
Kohtaro Ujiie
Jan H. Behrmann
Frederick M. Chester
Tianhaozhe Sun
Saneatsu Saito
Santanu Bose
James C. Sample
Tao Yang
Jun Kameda
Christine Regalla
Matt J. Ikari
J. Casey Moore
M. Wolfson-Schwehr
Demian M. Saffer
Patrick M. Fulton
Takehiro Hirose
Marianne Conin
Nobuhisa Eguchi
Jim Mori
Ryota Hino
Kochi Institute for Core Sample Research
Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE)
Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Collège de France (CdF)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Institut National de la Recherche Agronomique (INRA)
Department of Earth and Planetary Sciences, University of California Santa Cruz
Department of Geology and Geophysics, Texas A&M University
Texas A&M University [College Station]
Disaster Prevention Research Institute
Kyoto University [Kyoto]
Department of Geology [Leicester]
University of Leicester
Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)
Disaster Prevention Research Institute (DPRI)
Kyoto University
Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Collège de France (CdF (institution))-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Recherche Agronomique (INRA)
Source :
Science, Science, American Association for the Advancement of Science, 2013, 339, pp.687. ⟨10.1126/science.1229379⟩, Science, 2013, 339, pp.687. ⟨10.1126/science.1229379⟩, Science, American Association for the Advancement of Science, 2013, 339, pp.687. ⟨10.1126/science.1229379 ⟩
Publication Year :
2013
Publisher :
HAL CCSD, 2013.

Abstract

Stressed Out Large seismic events such as the 2011 magnitude 9.0 Tohoku-Oki earthquake can have profound effects not just on the severity of ground motion and tsunami generation, but also on the overall state of the crust in the surrounding regions. Lin et al. (p. 687 ) analyzed the stress 1 year after the Tohoku-Oki earthquake and compared it with the estimated stress state before the earthquake. In situ resistivity images were analyzed from three boreholes drilled into the crust across the plate interface where the earthquake occurred. Stress values indicate a nearly complete drop in stress following the earthquake such that the type of faulting above the plate boundary has changed substantially. These findings are consistent with observations that the sea floor moved nearly 50 meters during the earthquake.

Details

Language :
English
ISSN :
00368075 and 10959203
Database :
OpenAIRE
Journal :
Science, Science, American Association for the Advancement of Science, 2013, 339, pp.687. ⟨10.1126/science.1229379⟩, Science, 2013, 339, pp.687. ⟨10.1126/science.1229379⟩, Science, American Association for the Advancement of Science, 2013, 339, pp.687. ⟨10.1126/science.1229379 ⟩
Accession number :
edsair.doi.dedup.....83d9db05a5548ddd486c7138d27a6877
Full Text :
https://doi.org/10.1126/science.1229379⟩