欢迎访问《地震》,

地震 ›› 2000, Vol. 20 ›› Issue (z1): 188-195.

• • 上一篇    下一篇

大同 -阳高二次地震前兆异常的对比分析

王秀文1, 赵新平1, 赵丽华2, 彭浩1   

  1. 1.山西省地震局 ,中国 太原 030002;
    2.太航中学 ,山西 太原 030006
  • 收稿日期:2000-06-05 修回日期:2000-06-21 出版日期:2000-09-30 发布日期:2022-09-23
  • 作者简介:王秀文 (1963-), 男, 山西忻州人 ,高级工程师, 2000年获硕士学位 ,主要从事地震预报、地形变前兆等研究
  • 基金资助:
    中国地震局“九五”科研攻关项目 (95-13-03-06)

Comparison and analysis of precursor anomaly before two Datong-Yanggao earthquakes

WANG Xiu-wen1, ZHAO Xin-ping2, ZHAO Li-hua2, PENG Hao2   

  1. 1. Seismological Bureau of Shanxi Province, Taiyuan 030002, China;
    2. Taihang Middle School, Taiyuan 030006, China
  • Received:2000-06-05 Revised:2000-06-21 Online:2000-09-30 Published:2022-09-23

摘要: 1989年 10月和 1991年 3月, 在山西北部大同盆地先后发生 MS 6. 1、 MS 5. 8二次中强地震。对比这二次地震的序列、空间分布及能量释放存在很大差异。分析了前兆场的时空强特征 ,前兆异常机理。分析表明, 大同-阳高二次地震活动, 是华北区域应力场增强 ,较大范围内应力增加和传递的结果。

关键词: 地震前兆, 异常特征, 大同 -阳高地震

Abstract: Two moderately strong earthquakes with MS 6. 1 and MS 5. 8 occurred in the Datong basin, North Shanxi province in October, 1989 and M arch 1991, respectively. There are great differences in seismic sequences, spatial distribution, and energy release and so on between the two earthquakes.Characteristics of space-time-magnitude in precursory field and mechanism of precursor anomaly are analyzed. The analysis shows that the two earthquakes in Da tong-Yanggao region are resulted f rom strengthening of the regional stress field in North China and increasing and transmitting of stress in alargearea.

Key words: Earthquake precursor, Anomalous characteristics, Datong -Y anggao earthquake

中图分类号: