supported by the National Natural Science Foundation of China(No.42120104002);Science for Earthquake Resilience(No.XH23052C);the Program of China-Pakistan Joint Research Center on Earth Sciences.
1.Introduction On December 18,2023,a M6.2 earthquake struck central China with epicenter at Jishishan,Gansu(35.70°N,102.79°E).In the USGS Latest Earthquake platform,the event was identified as M_(W)5.9,35.743°N,102...