Source Characteristics of the 2012 Ahar-Varzaghan Earthquake - Open Journal of Geology

OJG > Vol.6 No.1, January 2016

Open Journal of Geology

Volume 6, Issue 1 (January 2016)

ISSN Print: 2161-7570 ISSN Online: 2161-7589

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Source Characteristics of the 2012 Ahar-Varzaghan Earthquake ()

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DOI: 10.4236/ojg.2016.61005 3,581 Downloads 4,600 Views Citations

Author(s)

Maryam Aminipanah^*, Manouchehr Ghorashi, Mohsen Pourkermani, Abdolmajid Asadi, Katayoun Behzadafshar

Affiliation(s)

Department of Geology, Fars Science and Research Branch, Islamic Azad University, Shiraz, Iran.

ABSTRACT

The August 11, 2012 M_w 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 M_w 6 or greater have occurred within 300 kilometer of today’s events. The nearest was a M_w 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.

KEYWORDS

Ahar-Varzaghan Earthquake, Source Time Function, Source Mechanism, Source Parameters

Share and Cite:

Aminipanah, M. , Ghorashi, M. , Pourkermani, M. , Asadi, A. and Behzadafshar, K. (2016) Source Characteristics of the 2012 Ahar-Varzaghan Earthquake. Open Journal of Geology, 6, 39-46. doi: 10.4236/ojg.2016.61005.

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