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Bazargan, Sonia, Asaadi, Nazila, Shomali, Zaher Hossein, Rezapour, Mehdi. (1397). Slip distribution of the 2010 August 27 Mw 5.8 Kuh-Zar earthquake from finite-fault modeling. مجله زمین شیمی ایران, 5(1), 41-49. doi: 10.22128/ijaa.2018.141
Sonia Bazargan; Nazila Asaadi; Zaher Hossein Shomali; Mehdi Rezapour. "Slip distribution of the 2010 August 27 Mw 5.8 Kuh-Zar earthquake from finite-fault modeling". مجله زمین شیمی ایران, 5, 1, 1397, 41-49. doi: 10.22128/ijaa.2018.141
Bazargan, Sonia, Asaadi, Nazila, Shomali, Zaher Hossein, Rezapour, Mehdi. (1397). 'Slip distribution of the 2010 August 27 Mw 5.8 Kuh-Zar earthquake from finite-fault modeling', مجله زمین شیمی ایران, 5(1), pp. 41-49. doi: 10.22128/ijaa.2018.141
Bazargan, Sonia, Asaadi, Nazila, Shomali, Zaher Hossein, Rezapour, Mehdi. Slip distribution of the 2010 August 27 Mw 5.8 Kuh-Zar earthquake from finite-fault modeling. مجله زمین شیمی ایران, 1397; 5(1): 41-49. doi: 10.22128/ijaa.2018.141

Slip distribution of the 2010 August 27 Mw 5.8 Kuh-Zar earthquake from finite-fault modeling

Iranian Journal of Astronomy and Astrophysics
مقاله 5، دوره 5، شماره 1، تیر 2018، صفحه 41-49    اصل مقاله (352.04 K)
شناسه دیجیتال (DOI): 10.22128/ijaa.2018.141
نویسندگان
Sonia Bazargan1؛ Nazila Asaadi2؛ Zaher Hossein Shomali1؛ Mehdi Rezapour1
1Institute of Geophysics, University of Tehran, Tehran, Iran
2Physics Department, Zanjan University, Zanjan, Iran
چکیده
The slip distribution of a moderate earthquake in Iran, the 27th of August, 2010 Mw 5 : 8 Kuh-Zar earthquake, was estimated from regional broadband seismic data using constrained non-negative least squares linear slip inversion method. A great many inversions were carried to determine the optimal parameters used in the process such as rupture velocity and rise time. A rupture velocity of 2.55 km/s and rise time of 1.8 s were utilized for the event. Results show a rupture with peak slip of 15.0 cm and total seismic moment release of 2 × 1025 dyne-cm. The effect of the stations with different epicentral distances was also analyzed using a sensitivity test. Due to the non-uniqueness of the inversion problem, a set of solutions is presented for the Kuh-Zar earthquake. To the best of our knowledge, this is the first time to consider constrained non-negative least square linear finite-fault inversion procedure to the Kuh-Zar earthquake.
 
کلیدواژه‌ها
the 2010 Juh-Zar earthquake؛ seismic data؛ slip inversion
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