Study on statistical characteristics of seismic activity image in Sichuan-Yunnan area
Based on the Earthquake cases in China,we comprehensively collected and summarized the image anomalies and characteristic parameters before 120 earthquakes with magnitude greater than 5 in Sichuan and Yunnan region from 1966 to 2018,and formed semi-quantitative prediction indicators of each anomaly.The results show that the six anomalies in Sichuan and Yunnan are in order of number:88 significant events before earthquakes,42 seismic quiescence,39 seismic gaps,25 seismic belts,24 seismic windows,and 11 earthquake swarms.Four anomalies occur in the short and medium term before the strong earthquake,and most of the strong earthquakes occur in or near these anomaly areas.There is a good linear relationship between some characteristic parameters and strong earthquakes,but it need to determine the seismic tendency prediction by combining other observation anomalies.
anomaly of seismic activity imageearthquake cases in Chinaprediction indicatorSichuan-Yunnan area
万方数据
维普
