晋北区中小地震活动与晋冀蒙交界区6级地震的关系

详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文

英文篇名：Relationship between the Medium-small Earthquake Activities in Northern Shanxi Province and M6.0 Earthquake Occured in the Juncture Area of Shanxi,Hebei,Inner Mongolia 中文刊名：西北地震学报 英文刊名：Northwestern Seismological Journal 作者：王化宇 ; 殷志刚 英文作者：WANG Hua-yu ; YIN Zhi-gang (Datong Centrol Seismic Station ; Seismological Bureau of Shanxi Province ; Datong Shanxi 037008 ; Chian) 中文关键词：晋北区 ; 中小地震活动 ; 晋冀蒙交界区 ; 中强震 英文关键词：Northern Shanxi province ; Medium-small earthquake activity ; The Juncture area of Shanxi ; Hebei ; Inner Mongolia ; Moderate-strong earthquake 出版日期：2005-03-30 机构：山西省地震局大同中心地震台,山西省地震局大同中心地震台 山西大同037008 ,山西大同037008 年：2005 期：01 出版单位：西北地震学报

摘要

分析了晋北区中小地震(3.0≤ML≤5.0)的活动特征。统计发现,在1989 年山西大同-阳高6.1、1996年内蒙包头6.4和1998年河北张北6.2 级中强地震前1~2 年内晋北地区的中小地震活动年频次有明显的增强-衰减-发震这一特征;震前主震近场区的地震条带活动对主震位置有预示意义,而较远场的地震活动仅反映主震前应力水平的增强。并有震前活动向未来强震区靠近的特征。
The characteristic of medium-small earthquake activity(3.0≤M_(L)≤5.0) from 1982 in northern Shanxi province is analysed. It is found that 1~2 years before 1989 Datong-Yanggao M_L6.1 earthquake,1996 Baotou M_L6.4 earthquake and 1998 Zhangbei M_L6.2 earthquake,the yearly frequencies of medium-small earthquake active showed obviously the process of in creasing-decreasing-main earthquake occuring. The strip-like seismic activities in areas near the main-shock before the event have the mean of predicting main-shock position,meanwhile the seismicities in the areas far from main-shock can only present the increasing of stress field level. The active of medium-small earthquake often move to the area where a strong earthquake would occur.

引文

[1]陈国顺.对大同断陷盆地形成演变过程的几点认识[J].华北地震科学,1983,1(2):31-34.
    [2]王秀文.山西大同-阳高6.1级地震形变异常的再研究[J].山西地震,2001,(1):1-8.
    [3]王焱,刁桂苓,张四昌,等.1999年山西大同MS5.6级地震的震源断层[J].中国地震,2002,18(1):96-101.
    [4]王化宇,殷志刚.晋冀蒙交界区5.0级以上地震演化过程之研究[J].山西地震,2004(2):19-22.