Source Spectral studies using Lg wave in western Tibet
- Indian Institute of Technology, Kharagpur, Geology and Geophysics, India (sukantaagp@iitkgp.ac.in)
The tectonic structure of western Tibet is complex and formed of several blocks, which are separated by distinct suture zones. This complexity makes the region very crucial for understanding the local tectonic settings. Here, we investigate the spectral characteristics of Lg wave from 420 waveforms recorded at 26 seismic stations located across Karakoram Fault (KKF) in western Tibet. We subdivide the study region into two parts across KKF. A frequency dependent QLg is observed in both sides of KKF with strong attenuation in the crust. The moment magnitude of each earthquake is computed using displacement spectra and subsequently compared with the reported local magnitude. Variations of the corner frequency with magnitude and distance
are also studied, which show a decreasing nature due to the path dependency.
How to cite: Sarkar, S., Jaiswal, N., Singh, C., Dubey, A. K., and Singh, A.: Source Spectral studies using Lg wave in western Tibet, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-4915, https://doi.org/10.5194/egusphere-egu2020-4915, 2020
