出版社:geodynamics Research International Bulletin Online
摘要:Saravan earthquake which occurred on 16 April.2013 with Mw 7.8 and depth of 95 kms struck southeast Iran, Sistan and Baluchestan province. Its reverberations were felt as far away as neighboring countries. The earthquake had a normal mechanism and occurred in Saravan fault zonation. The focal depth of the earthquake ranged from 50 to 95 kms and its magnitude was estimated to be 7.5 to 7.8. According to observations and field investigations, near Hampanik village in southwestern Gosht city, a 2-km systematic surface fracture with northwestern-southwestern trend, along Saravan fault was observed as a reactivated structure which has an En –Echelon pattern. The maximum magnitude of the earthquake was VII in MMI scale. Since the earthquake originated so deep underground, and in such a sparsely populated area, it caused relatively few casualties and only minor damage. But this earthquake led to the reactivation of sulphur and Travertine springs, sand liquefaction, water level rise of Qanats, creation of surface ruptures, reactivation of old linear structures, lime mountain landslides, Mount Taftan, Mount Birak, destruction of the walls of the buildings which were perpendicular to direction of the force propagation.