二次地方震前的体应变短临异常  

Short-impending anomaly of body-strain before two local earthquakes

作　　者：王一宽 

机构地区：[1]江苏省南通地震台,江苏南通226004

出　　处：《华南地震》2003年第2期96-100,共5页South China Journal of Seismology

摘　　要：2001年11月3日和12月25日在江苏省张家港和南通分别发生ML3 7、ML3 9级地震,南通台体应变观测在这二次地方震前出现了形态相同的突跳性异常变化,对异常进行了分析、判断,排除了环境和气象因素的干扰,认为是这二次地方震的前兆反映。Two earthquakes (ML37and 39) occurred in Zhangjiagang and Nantong on November 3 and December 25, 2001. The sudden anomalies with same form were observed by body-strain at Nantong station before two local earthquakes. In this paper, we analyzed the body-strain data, and eliminated the interference of environment and weather. We thought that the anomalies were the reflection precursors before the two local earthquakes.

关 键 词：地震前兆 突跳性异常变化 体应变观测 短临异常 孕震区 南通地震台 

分 类 号：P315.7[天文地球—地震学]