• 责任者：Xu Lisheng (Institute of Geophysics ; China Earthquake Administration ; Beijing 100081 ; China) ; Di Haibin
• 刊名：Chinese Journal of Geophysics
• 出版年：2010
• 卷期：53(6)
• 关键词：玉树地震2010 ; Yushu earthquake 2010 ; 地面运动 ; ground motion ; 青海 ; Qinghai Province
• 页码：p.1366-1373
• 图表：5 illus., 1 table, 14 refs.
• 分类号：0500
• issnNo：ISSN0001-5733
• isbnNo：CN11-2074/P

On April 14th, 2010, an M_s7.1 earthquake occurred in Yushu Tibetan Autonomous State, Qinghai Province, China. The authors calculated the ground motion, near the causative fault using the dynamic model of rupture process from the inversion of teleseismic waveform data and the crust model of Crust2.0, reconstructing an image of the fault-near ground motion at the time of quaking. The image shows that there appeared the evident Doppler’s effect, generated by the unilateral rupture process of the source. Seismic waves radiated out wards from the epicenter, but those propagating toward southeast along the fault had much larger amplitudes, and were much more crowded. The Yushu City happens to lie on not only where static displacement was larger also where the stronger velocity waves and displacement waves ran through. There should be no doubt that the Doppler’s effect caused by the unilateral rupture process was the main reason why the most disastrous damage happened in the Yushu City.