[1]付虹,李永莉,赵小艳,等.云南M≥5地震震前异常的统计特征[J].地震研究,2008,(04):335-339.
　FU Hong,LI Yong-li,ZHAO Xiao-yan,et al.Statistical Characteristics of the Anomalies before the M≥5 Earthquakes in Yunnan Region[J].Journal of Seismological Research,2008,(04):335-339.
点击复制

云南M≥5地震震前异常的统计特征^(PDF /HTML)

《地震研究》[ISSN:1000-0666/CN:53-1062/P]

Title:: Statistical Characteristics of the Anomalies before the M≥5 Earthquakes in Yunnan Region

Author(s):: FU Hong; LI Yong-li; ZHAO Xiao-yan; LIU Li-fang; (Earthquake Administration of Yunnan Province,Kunming 650224,Yunnan,China)

Keywords:: analysis of earthquake case; anomaly characteristic; earthquake prediction; Yunnan

摘要:: 通过对1970年以来云南38组M≥5地震震前异常的综合分析,得到云南5级以上地震的异常共性特征:震前小震频度普遍增强; 6级以上地震的异常持续时间比5级地震长; 异常分布越广可能未来地震的震级越大; 部分前兆观测项目趋势异常结束、新的突变异常增多,是地震孕育进入短临阶段的标志。

Abstract:: We synthetically analyzed the anomalies before the 38 groups of earthquakes(M≥5)since 1970 in the Yunnan region,and obtained the common characteristics of the anomalies.The frequency of small earthquakes usually increases before the earthquakes(M≥5); the durations of anomalies of M≥6 earthquakes are longer than those of M5-6 earthquakes; the wider the anomalies distribute,the bigger the magnitude of the earthquake(M≥5); the ending of some tendentious precursory anomalies and the increasing of new abrupt anomalies can be considered as the sign of the earthquake preparation going into short-term and impending-earthquake period.

备注/Memo:: 收稿日期:2008-07-07
基金项目:国家科技支撑计划课题(2006BAC01B03-02-01)和云南省人才培引办项目(2006PY01-39)联合资助.

更新日期/Last Update: 2008-04-23