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