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地震 ›› 2004, Vol. 24 ›› Issue (2): 81-88.

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广西及邻区环境剪应力场基本特征与未来地震危险区预测研究

杨仕升1,2, 李柳英1, 莫敬业1, 李耿民1   

  1. 1.广西壮族自治区地震局, 广西 南宁 530022;
    2.广西大学土木建筑工程学院,广西 南宁 530004
  • 修回日期:2003-08-04 出版日期:2004-04-30 发布日期:2021-11-29
  • 作者简介:杨仕升(1960-), 男, 壮族, 广西邕宁人, 高级工程师, 主要从事地震监测信息和建筑结构工程抗震研究。
  • 基金资助:
    广西壮族自治区科学研究与技术开发计划项目(9717001)

Basic characteristics of ambient shear stress field and forecasting study of future earthquake risk area in Guangxi and its neighboring region

YANG Shi-sheng1, 2, LI Liu-ying1, MO Jing-Ye1, LI Geng-min1   

  1. 1. Seismological Bureau of Guangxi Zhuang Autonomous Region, Nanning 530022;
    2. Architectural and Civil Engineering Institute, Guangxi University, Nanning 530004, China
  • Revised:2003-08-04 Online:2004-04-30 Published:2021-11-29

摘要: 利用广西台网30多年地震观测资料, 根据P波初动半周期和地震震级资料测定环境剪应力的方法, 测算了广西及邻区大量中小地震震源的相对剪切应力强度值, 据此分析了广西及邻区环境剪应力场总体特征, 给出了8次中强地震前后一年的环境剪应力值, 对环境剪应力值的区域特点进行了分析。

关键词: 环境剪应力场, 中强地震, P波, 地震危险区

Abstract: In this paper, the ambient shear stress values of many moderate and small earthquakes sources in Guangxi and its neighboring region are determined by using the method of the P- wave first move half period and the earthquake magnitude data, and the observed earthquake data for more than 30 years in the area. Based on these, basic characteristics of ambient shear stress field are studied and the future earthquake risk areas are forecasted in Guangxi and its neighboring region.

Key words: Ambient shear stress field, Moderately strong earthquake, Earthquake risk area

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