晋冀蒙交界区5.0级以上地震演化过程之研究

英文篇名：A Study on Evolution of Earthquakes Larger Than M 5.0 in the Juncture Area of Shanxi, Hebei and Inner Mongolia.
中文刊名：山西地震
英文刊名：Earthquake Research In Shanxi
作者：王化宇 ; 殷志刚
英文作者：WANG Hua-yu ; YIN Zhi-gang (Datong Central Seismological Station ; Shanxi ; Datong 037008 ; China)
中文关键词：晋冀蒙交界区 ; 地震活动特征 ; 地震孕育
英文关键词：Juncture area of Shanxi ; Hebei and Inner Mongolia ; Seismic activity ; Earthquake preparation
出版日期：2004-05-30
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：2004
期：02
出版单位：山西地震

摘要

研究了晋冀蒙交界地区5.0级以上地震的时空分布特征、孕育演化过程,结果表明,该区5.0级以上地震空间分布受区内主要活动断裂控制,研究区孕育1次6.0级以上地震需9a以上。5.0级以上地震的孕育演化过程具有共性:表现为孕震构造伴有中小地震(3.0Feature of space-time distribution of earthquakes larger than M 5.0 in the juncture area of Shanxi, Hebei and Inner Mongolia and their seismogenic process and evolution are studied. The results show that spatial distribution of earthquakes larger than M 5.0 is controlled by main active faults in this area and the time to form an earthquake larger than M 5.0 is longer than 9 years. Seismogenic processes and evolutions of earthquakes larger than M 5.0 in this area have some common behaviors: seismogenic processes are accompanied by interim medium and small seismicities; there is a quiet period, about 2 to 8 months, before a main shock; the last medium earthquake well correspond to the followed main shock; medium earthquakes begin to move towards to epicenter of a main shock apparently from outer places, before 2 years.

引文

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