Volume 3, Issue 2 (4-2010)
2010, 3(2): 697-716 |
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Characteristics of Seismicity in Silakhor Brojerd Area Based on earthquakes of IIBES temporary Seismic Net. Journal of Engineering Geology 2010; 3 (2) :697-716
URL: http://jeg.khu.ac.ir/article-1-337-en.html
URL: http://jeg.khu.ac.ir/article-1-337-en.html
Abstract: (6400 Views)
(Paper pages 697-716)
Silakhor Brojerd area is between high Zagros zone and Sanandaj-Sirjan zone and is one of the seismic areas, with high frequency of occurrence and medium magnitude and sometimes high magnitude, in Iran. Area of maximum destruction and fault plane solutions show a NW-SE trend. Observation of aftershock distribution, caused by earthquake of 1384/2/31, on the region delineated that most of them have occurred in the epicenter area of the main shock, on Ghale-Hatam fault. Also most of aftershocks, caused by earthquake of 1385/1/13 in Brojerd, have occurred in epicenter area of the main shock on Doroud fault. Moreover, focal mechanisms of earthquakes, are right lateral strike-slip with some normal or reverse dip-slip. These different solutions, next to each others indicate partitioning in this area of Zagros.
Silakhor Brojerd area is between high Zagros zone and Sanandaj-Sirjan zone and is one of the seismic areas, with high frequency of occurrence and medium magnitude and sometimes high magnitude, in Iran. Area of maximum destruction and fault plane solutions show a NW-SE trend. Observation of aftershock distribution, caused by earthquake of 1384/2/31, on the region delineated that most of them have occurred in the epicenter area of the main shock, on Ghale-Hatam fault. Also most of aftershocks, caused by earthquake of 1385/1/13 in Brojerd, have occurred in epicenter area of the main shock on Doroud fault. Moreover, focal mechanisms of earthquakes, are right lateral strike-slip with some normal or reverse dip-slip. These different solutions, next to each others indicate partitioning in this area of Zagros.
Accepted: 2016/10/5 | Published: 2016/10/5
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