【摘要】 系统收集了2011年云南盈江5.8级地震前后的地震学基础资料,对盈江地震的地震地质背景、地震序列基本特征、地震烈度、发震断裂和区域应力场进行了详细分析。在此次盈江地震发生前,运用地震力标度、环境剪应力、地震序列h值、破裂时间法、能量释放方法,对该地震做了短临跟踪和预测。结果显示,盈江5.8级地震的发震断裂很可能是NE向的大盈江左旋走滑断裂,盈江地震前出现了诸多地学参数异常,这些异常对未来强震发生的时间和地点均有短临指示意义。更多还原

【Abstract】 Collecting the firsthand seismic data before and after the MS5.8 Yingjiang earthquake in Yunnan Province in 2010,we systematically analyze the seismo-geological background,the main characteristics of the sequence,the seismic intensity,the seismogenic fault of the Yingjiang earthquake as well as the regional stress field in the earthquake-stricken area.Particularly,by tracking the earthquake force scale,shear stress,h-value of earthquake sequence,time-to-failure and seismic energy,we conduct a short-term and impending earthquake and prediction 3 months before Yingjiang earthquake.The Dayingjiang fault,which is NE-trending,left-lateral and strike-slip,is most likely the seismogenic fault of this earthquake.There appeared a lot of anomalous seismic parameters before the earthquake,which significant to the short-term and impending prediction for the time and location of the future earthquakes in this area.更多还原