包头西6.4级地震前地球物理场特征的研究

英文篇名：Studies of Geophysical Field Features Before the Baotou Earthoquake(RMS6.4)
中文刊名：阴山学刊(自然科学版)
英文刊名：Yinshan Academic Journal(Natural Science Edition)
作者：王春玲
英文作者：WANG Cun-ling(Seismological Bureau of Baotou City ; Baotou 014010)
中文关键词：地球物理场 ; 地震场论 ; 地震活动 ; 地震前兆 ; 地震预报
英文关键词：geophysical field ; seismic activity ; seismic precursor ; earthquake prediction
出版日期：2009-03-20
机构：包头市地震局;
年：2009
期：01
出版单位：阴山学刊(自然科学版)

摘要

通过对包头6.4级地震前较大范围前兆资料的研究,认为一个强烈地震在发生之前,围绕震中区不同区域内,将出现具有不同特征的前兆场异常群。其近场(△≤100km)的主要特征是具有较长时间尺度的趋势性异常;中场(100km<△≤200km)的主要特征是趋势和突发性异常并重;而远场(△>200km)则一般无趋势性异常,只有急剧变化的短临异常。
In this paper,by studying precursory data of large range before Baotou earthquake(Ms6.4),the authors suggested that anomalies group of precursor field may appear with different features before a strong earthquake in different areas around the epicenter.The main character of the near field(≤100km)is a tendency anomaly with relatively long time scale;the main character of the middle-far field(100km<<200km)showed both tendency and sudden anomalies;but the distant field,generally speaking,showen no anomalies,only showed short term and imminent precursors of the earthquake.

引文