Source Characteristics of the 2012 Ahar-Varzaghan Earthquake

作     者：Maryam Aminipanah Manouchehr Ghorashi Mohsen Pourkermani Abdolmajid Asadi Katayoun Behzadafshar Maryam Aminipanah;Manouchehr Ghorashi;Mohsen Pourkermani;Abdolmajid Asadi;Katayoun Behzadafshar

作者机构：Department of Geology Fars Science and Research Branch Islamic Azad University Shiraz Iran 

出 版 物：《Open Journal of Geology》 (地质学期刊（英文）)

年 卷 期：2016年第6卷第1期

页      面：39-46页

学科分类：070801[理学-固体地球物理学] 07[理学] 0708[理学-地球物理学] 

主　　题：Ahar-Varzaghan Earthquake Source Time Function Source Mechanism Source Parameters 

摘      要：The August 11, 2012 Mw 6.4 earthquakes in northwestern Iran occurred as a result of oblique strike-slip faulting in the shallow crust of the Eurasia plate, approximately 300 kilometer east of the plate boundary between the Eurasia and Arabia plates. The seismotectonics of this region is controlled by the collision of the Arabia and Eurasia plates;at the latitude of the earthquakes, the Arabia plate moves almost due north with respect to the Eurasia plate at a rate of approximately 26 millimeter per year. Over the past forty years, seven earthquakes of Mw 6 or greater have occurred within 300 kilometer of today’s events. The nearest was a Mw 6.1 earthquake in February of 1997, approximately 100 kilometer to the east, which caused 1100 fatalities. The studied area encourage the authors to determine the focal mechanism, source time function and sub events’ features which can guide us to reliable judges.