摘要
论述了张北MS6.2、沈阳ML4.1、内蒙古ML5.9、日本北海道MS8.0、俄蒙中交界MS7.9、青海昆仑山MS8.1地震前后,锦州地震台体积式钻孔应变仪观测震前异常的变化规律。通过计算潮汐因子、振幅因子、3点线性平滑滤波残差值等方法,识别异常。结果表明,体应变异常资料与地震有一定的相关性。
We have summarized the abnormal rules of volume Strain in Jinzhou Seismic Station before Zhangbei M 6. 2 earthquake, Shenyang M 4. 1, Inner Mongolia M 5.9,Japan M 8. 0, Russia M 7.9,and Qinghai M 8. 1. We had identified precursor of earthquake using some methods such as strain tides factor, three point smooth filter and so on. The results indicated that there was some correlation between the volume strain abnormality and earthquake occurrence.
出处
《地震地磁观测与研究》
2005年第B10期48-52,共5页
Seismological and Geomagnetic Observation and Research
关键词
体应变
潮汐因子
异常信息
volume strain, tides factor, abnormal information
