| 北京顺义4.0级地震和震后首都圈地震趋势分析 |
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| 引用本文： | 关华平,马丽.北京顺义4.0级地震和震后首都圈地震趋势分析[J].地震,1997,17(4):411-416. |
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| 作者姓名： | 关华平 马丽 |
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| 作者单位： | 国家地震局分析预报中心!中国北京，100036，国家地震局分析预报中心!中国北京，100036，国家地震局分析预报中心!中国北京，100036，国家地震局分析预报中心!中国北京，100036，国家地震局分析预报中心!中国北京，100036 |
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| 摘 要： | 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，首都圈地区地震活动出现了近ＳＮ向弱震活动，１１月份地震活动是全的月频次最低的月份，这些异常现象之后发生了顺义地震。此次顺义地震属非前生震群活动。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。
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| 关 键 词： | 地震前兆 首都圈 地震趋势 |
SHUNYI 4. 0 EARTHQUAKE SWARM AND THE AFTERSHOCK TENDENCY ANALYSIS IN THE CAPITAL AREA |
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| Guan Huaping, Ma Li ,Chen Qifu, Wang Huimin, Yang Wenzheng.SHUNYI 4. 0 EARTHQUAKE SWARM AND THE AFTERSHOCK TENDENCY ANALYSIS IN THE CAPITAL AREA[J].Earthquake,1997,17(4):411-416. |
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| Authors: | Guan Huaping Ma Li Chen Qifu Wang Huimin Yang Wenzheng |
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| Abstract: | The Ms 4. 0 earthquake happened in Shunyi on 16th Dec. 1996 was the biggest seismicity in the last six yeas in the Capital Area. Some weak earthquake's actions were found in SN direction in the Capital region. In addition, the monthly frequency of seismicity in November is the lowest in 1996. After all these abnormal phenomena, the swarm happened. By our study, we found that this swarm belongs to non-precursor seismicity. By comparing it with other swarms happened nearby since 1970, we found that this swarm had the largest number of aftershocks. Through analysis, we conclude that: more attentions should be paid to north-west of Beijing and Zhangjiakou area in the following several months, earthquakes with magnitude 5 may occur. |
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| Keywords: | Seismicity Abnormal precursors Swarm |
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