Estimating of Vp/Vs Ratio for Northwestern Iran using aftershocks of the 2019 Mw 6.0 Turkmanchai earthquake
عنوان دوره: نوزدهمین کنفرانس ژئوفیزیک ایران
نویسندگان
1زلزله شناسی، موسسه ژئوفیزیک، دانشگاه تهران، تهران، ایران
2موسسه ژئوفیزیک/دانشجو/دانشگاه تهران/تهران/ایران
چکیده
The seismic velocities data and Vp/Vs ratios provide useful information about the seismic behavior and tectonic structures of the selected area. Our study area is situated in a region of conjugate strike-slip faulting. In this study, we used arrival time's data of P- and S-waves of the 7 November 2019 Turkmanchai earthquake (Mw 6.0, located at 37.803° N, 47.581° W) recorded by 8 three-component short-period stations of northwestern Iran, and its aftershocks to calculate Vp/Vs ratio. The average Vp/Vs ratio of 1.777±0.003 is obtained for the study region. Also, in this study, velocity values of 6.144±0.003, 3.466±0.006 and 7.186±0.005 km/s, are obtained for the Pg, Sg, and Pn phases, respectively
کلیدواژه ها
 
Title
Estimating of Vp/Vs Ratio for Northwestern Iran using aftershocks of the 2019 Mw 6.0 Turkmanchai earthquak
Authors
milad kaboli, saeid rahimzadeh
Abstract
The seismic velocities data and Vp/Vs ratios provide useful information about the seismic behavior and tectonic structures of the selected area. Our study area is situated in a region of conjugate strike-slip faulting. In this study, we used arrival time's data of P- and S-waves of the 7 November 2019 Turkmanchai earthquake (Mw 6.0, located at 37.803° N, 47.581° W) recorded by 8 three-component short-period stations of northwestern Iran, and its aftershocks to calculate Vp/Vs ratio. The average Vp/Vs ratio of 1.777±0.003 is obtained for the study region. Also, in this study, velocity values of 6.144±0.003, 3.466±0.006 and 7.186±0.005 km/s, are obtained for the Pg, Sg, and Pn phases, respectively
Keywords
Seismic velocities, Vp/Vs ratio, Turkmanchai earthquake, Bozghush rang