摘要
研究了利用钻孔应变异常时间预测地震震级问题。从实际工作需要出发,在做了大量震例总结和比较了前人的工作之后,首次得到了更加适合新疆地区的异常时间与震级之间的统计关系式,即MS=5.4+0.004T±0.5。讨论了3个预测震级公式的优缺点及存在的问题,一些不合理的因素得到改善,震级预测误差明显减小,这对新疆地区的地震强度预测有实际意义。
The question of earthquake magnitude estimation of anomalous time is studied by borehole strain, after summarizing large earthquakes cases and contrasting the works of other researchers, the relationship formula of anomalous time and earthquake magnitude in Xinjiang region is Ms =5.4 ＋0.004T±0. 5. shortcoming, questions and some illogical factors of 3 formulas of earthquake magnitude estimation are disscussed and improved, the errors of magnitude estimation become small, this is meaning for seismic intensity prediction in Xinjiang region.
出处
《内陆地震》
2008年第1期6-13,共8页
Inland Earthquake
基金
国家自然科学基金(40562001)课题
中央级公益性科研院所基本科研业务专项基金课题(J2207838)共同资助
关键词
分量式钻孔应变
异常时间
测区相对应力场
震级预测
Component-type borehole strain
Anomalous time
Comparative stress field in observational region
Earthquake magnitude estimation
