论文部分内容阅读
1996年12月16日顺义Ms4．0地震，是北京地区近6a来最大的一次地震活动。此次地震前，首都困地区地震活动出现了近SN向弱震活动，11月份地震活动是全年月频次最低的月份，这些异常现象之后发生了顺义地震。此次顺义地震属非前兆世震群活动。这次地震活动是顺义及其附近地区1970年以来地震活动余震次数最多的一次。这次地震后应注意今后几个月京西北、张家口附近发生Ms5.0左右地震的可能。
December 16, 1996 Shunyi Ms4.0 earthquake is the largest in Beijing in recent 6 years to a seismic activity. Prior to the earthquake, near SN trending earthquake occurred in the quake-prone areas of the capital, and in November the seismogenic activity was the month with the lowest monthly frequency in the whole year. Shunyi Earthquake occurred after these anomalies. The Shunyi earthquake is a non-precursor earthquake world group activities. This seismic activity is the largest number of seismic aftershocks in Shunyi and its vicinity since 1970. After the earthquake, attention should be paid to the possibility of an Ms5.0 earthquake occurring in northwestern Beijing and Zhangjiakou in the coming months.