浅析江淮区中强震活动与琉球弧强震活动的相关性  

A discussion on correlativity of strong and moderate earthquakes in Jiang-Huai area and strong earthquakes in Ryukyu Arc

作　　者：王秀根 

机构地区：[1]泰州市地震局,中国江苏225300

出　　处：《地震地磁观测与研究》2004年第2期8-14,共7页Seismological and Geomagnetic Observation and Research

摘　　要：江淮地震区地处我国东部地区,属于5～6级地震为主的中强震活动区,琉球弧地处西太平洋地震带的西支,属于7级以上地震为主的强震活动区。本文运用列表和回归分析法对江淮区中强震活动和琉球弧强震活动的相关性进行了分析。结果表明,两者之间的相关性较好,对应率达80%,其平均滞后时间在18个月。并且讨论了产生相关性的原因。分析结论可能对江淮区中强震的中期预报具有一定的作用。Jiang-Huai area in the east China is a seismically active area of moderately strong earthquakes. The magnitudes of earthquakes are mainly 5～6 there. Ryukyu Arc that lies in west branch of West Pacific seismic belt is a strong seismic activity area. The magnitudes of earthquakes are mainly 7～8.9 there. In this paper, the correlativity between the strong and moderate earthquakes in Jiang-Huai area and the strong earthquakes in Ryukyu Arc has been studied with the method of list and regression analysis. The results show that the correlativity is good between strong and moderate earthquakes in Jiang-Huai and strong earthquakes in Ryukyu Arc. The correlation coefficient is about 80 percent. The delay time is in a period of 18 months. The results are helpful for the prediction of the strong and moderate earthquakes in Jiang-Huai area.

关 键 词：地震相关性 江淮区 琉球弧 预报 

分 类 号：P315.5[天文地球—地震学]