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Monitoring earthquake precursor field of NW Yunnan by stress remote sensing |
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| Authors: | YOU Yongxiong WANG Rongmin LI Aijun FAN Changyao RONG Zhiguo |
| Institution: | 1. Department of Environment Science, China University of Geosciences, Beijing 100083, China 2. State Satellite Meteorological Center, Beijing 100081, China 3. Computer Center, Ministry of Geology and Mineral Resources, Beijing 100083, China |
| Abstract: | The orbit perturbation of meteorologic satellite is used for the inversion of stress drop dynamic field of regional crustal structure. Rapid scanning over vast area is carried out to obtain short term earthquake-generating precursor field of seismic source and near-source districts in order to predict the three earthquake elements: epicenter, magnitude and commencement time of earthquake with the same effect as weather forecast. Taking the strong earthquakes that occurred in recent years in the NW of Yunnan as examples, direct deduction has been made for Lijiang and Wuding earthquakes, and curves of dynamic characteristics of stress drop before and after earthquakes as well as abnormal fluctuations of precursor stress drop and commencement time of earthquake have been plotted. |
| Keywords: | stress remote sensing monitoring over the earthquake precursor field tectonic stress field area of Lijiang and Wuding of NW Yunnan |
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