Abstract
Seismic fault parameters can be inversed with Okada model based on deformation data before and after earthquakes in focal region and its adjacent area. Co-seismic displacements can be simulated by using these parameters, and then regional velocity field obtained by deducting the co-seismic displacements from the observed displacements by GPS method. We processed and analyzed the data in the northeastern edge region of the Qinghai-Tibet plateau observed during 2001 – 2003 in two steps: firstly, the displacements generated by Kunlun M s8.1 earthquake of 2001 in this region was simulated, and secondly, deducted the co-seismic displacements from it and obtained the horizontal crustal velocity field. The results reveal: 1) the effect of Kunlun M s8.1 earthquake on crustal deformation in this region is significant; 2) the velocity field obtained with this method is better than the original GPS velocity field in reflecting the status of regional crustal movement and strain.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call