摘要
用地震活动非均匀度GL值作参数,使用1971~2000年期间川滇地区M≥2.5级地震资料进行了GL值的空间扫描。结果表明,川滇地区72%的M≥6级地震前1~2a,在未来震中周围均有GL值异常出现,用R值对其进行评分,可以通过检验。由典型震例图像给出了异常的主要特征。
Taking the heterogeneious GL value of the seismicity as the parameter, the data of M≥2.5 earthquakes from 1971 to 2000 in Sichuan-Yunnan region is used to perform spatial scan of GL values. The results show that the anomaly of GL values would appear around the coming epicenters 1 or 2 years before 72% of M≥6 earthquakes in the Sichuan-Yunnan region. It can pass the check if using R value to grade. The major features for the anomalies are shown in the typical ease pattern.
出处
《地震研究》
CSCD
北大核心
2004年第z1期14-17,共4页
Journal of Seismological Research
基金
国家科技攻关项目96-913-09项目资助
关键词
CL值方法
M≥6级地震
中短期预测
川滇地区
method of GL value, M≥6 earthquake, mid-short term prediction, Sichuan-Yunnan Region