خلاصه ماشینی:
Geography and Environmental Hazards 24 (2018) Investigating the Impact of Gosht Earthquake on Saravan Fault System Using Coulomb Stress Transfer a1 Amir Pirooz Kolahi-Azara, Gholam Reza Maghami-Moghim a School of Earth Sciences, Damghan University,Damghan, IRAN.
One of the ways that can predict possible aftershock activities through the faults influenced around the main quake is the Coulomb stress transfer method.
In the present paper, using the Coulomb stress transfer method, the relationship between Gosht earthquake and the spatial distribution of the corresponding aftershock activity is investigated.
Due to the tectonic setting of the area and the relatively high depth of the earthquake, it is not possible to measure the length of the failure of the reference fault, and therefore, the experimental relations provided by Wells and Coppersmith (1994) have been used.
Due to the lithospheric thickness of the study region, earthquakes occurred up to depth of 35 kms can be related with Saravan fault activities.
4. Conclusions The study of Gosht earthquake impact on Saravan fault confirms the significant transfer of Coulomb stress.
The occurrence of three aftershocks with low focal depths and the correlation of their epicenters with the regions of increasing static stress indicate Saravan fault was influenced by Gosht temblor.
Therefore, in this study, we are able to determine the earthquake causing fault from the nodal planes by estimating Coulomb stress transfer technique and spatial distribution pattern of aftershock events.
Coulomb stress transfer and tectonic loading preceding the 2002 Denali fault earthquake.