ERZİNCAN OVASI VE ÇEVRESİNİN DEPREMSELLİĞİ İLE DEPREMLERİN MEKÂNSAL VE YOĞUNLUK ANALİZLERİ.

In this study, the seismicity of the Erzincan Plain and its surroundings, which are part of the Upper Euphrates Section in the Eastern Anatolia Region was investigated. Erzincan Plain is a tectonic plain developed on the North Anatolian Fault Zone (NAFZ). However, the NE-SW trending North-East Anatolian Fault (NEAF) in the north of the plain and the Ovacık Fault (OF) in the southeast of the plain affected the development of the plain. The Erzincan Plain, which is tectonically located at the intersection of faults, has experienced large earthquakes that have been effective in the past to the present. Seventeen of these devastating earthquakes occurred in the historical period and two in the instrumental period (1939 and 1992 Erzincan earthquakes). Severe earthquakes have occurred that seventeen of these earthquakes occurred in the historical period and two in the instrumental period. Considering this situation of the plain environment, spatial and intensity analyses were performed using 46 earthquake data with a magnitude of Mw =4 that occurred in the instrumental period. Based on the analysis, destructive earthquakes are concentrated in and around Erzincan, situated on the NAFZ. Moderate and low-intensity earthquakes, on the other hand, are more common in the east and southeast of the plain. The high concentration of severe earthquakes around Erzincan indicates a high risk in these areas. Therefore, it is advisable to establish new settlement areas outside the main fault zone, on gently sloping plains to the west of the Erzincan plain, which are more suitable in terms of ground. [ABSTRACT FROM AUTHOR]