Damghan University Press Iranian Journal of Astronomy and Astrophysics 2322-4924 5 1 2018 04 01 Slip distribution of the 2010 August 27 Mw 5.8 Kuh-Zar earthquake from finite-fault modeling عنوان 41 49 141 10.22128/ijaa.2018.141 EN Sonia Bazargan Institute of Geophysics, University of Tehran, Tehran, Iran Nazila Asaadi Physics Department, Zanjan University, Zanjan, Iran 0000-0001-5297-1237 Zaher Hossein Shomali Institute of Geophysics, University of Tehran, Tehran, Iran Mehdi Rezapour Institute of Geophysics, University of Tehran, Tehran, Iran Journal Article 2019 09 15 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.<br />   https://ijaa.du.ac.ir/article_141_a86ee530fe6b425e08efc8c8afb6670b.pdf