云南水汞在连发地震前短临异常及震后变化特征

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英文篇名：Short-impending anomalies of mercury in groundwater before the continual occurrence earthquake and their later changes in Yunnan, China 中文刊名：华南地震 英文刊名：South China Journal of Seismology 作者：杨杰英 ; 王永安 ; 张立 英文作者：YANG Jie-ying ; WANG Yong-an ; ZHANG Li(Seismological Bureau of Yunnan Province ; Kunming 650041 ; China) 中文关键词：短临异常 ; 异常特征 ; 水汞 ; 强震连发 ; 中强震连发 英文关键词：Short-impending anomalies ; Anomaly character ; Mercury in groundwater ; Continual occurrence of strong earthquake ; Continual occurrence of medium-strong earthquake 出版日期：2003-06-30 机构：云南省地震局,云南省地震局,云南省地震局 云南　昆明　650041 ,云南　昆明　650041 ,云南　昆明　650041 年：2003 期：02 出版单位：华南地震

摘要

通过对1995年5月6日～1996年2月3日发生在云南境内及其中缅边境一带的4组5次M≥6 0级强震的研究,发现水汞在强震连发期都出现短临异常及震后变化;与2001年云南省内6组7次5 0～5 9级中强地震短临异常及震后变化进行比较,结果表明强震连发期水汞的短临异常特征表现为异常台站多、异常幅度大、异常范围广和多台站水汞在异常中发震。中强震连发期水汞的短临异常特征与此相反,表现为异常台站少、异常幅度小、异常范围小和多台站水汞在异常结束后发震。
Based on the study of 4 group of 5 earthquakes with M≥60 which occurred in Yunnan and the boundary of China-Burma from May 6, 1995 to February 3, 1996, we found that there were some short-impending anomalies about mercury in groundwater and later-earthquake changes in continual occurrence period of strong earthquakes. The result shows that the short-impending anomaly of mercury in groundwater in their continual occurrence period characterized more anomaly stations, bigger anomaly amplitude, wider anomaly area and that earthquakes occurred in multi-station anomaly compared to 6 group of 7 medium-strong earthquakes with M50～59 occurred in Yunnan in 2001.On the contrary, short-impending anomalies of mercury in groundwater in continual occurrence period of medium-strong earthquakes characterized fewer anomaly station, smaller anomaly amplitude, smaller anomaly areas and earthquakes would occur after multi-station anomaly ending.

引文

[1]　陈立德,郭大庆,罗　平,等.震后异常与新地震异常的识别方法研究[J].地震,1995,15(增刊):125-134.