small earthquake

The variation of the major pressure stress axis of medium-small earthquakes in 2 years before 11 earthquakes with Ms≥5.

0地震前2年至震后1年震源区(△≤150km)附近中小[地]震主压应力轴相对背景场的变化研究结果表明,Ms≥5。

In addition, the mercury anomalies could also respond to the medium-small earthquake in the vicinity less than 100 km away and show single or multi value anomalies.

分析结果表明,该泉水汞异常与中强地震的对应率很高,主要为中短期趋势性异常,范围主要为甘肃中部地区(祁连山中东段地区),对附近地区的(100km左右)中小[地]震也有较高的对应率,为单点或多点突跳异常。

On the basis of the source theory and the predecessors researches, considering the present conditions of the digital seismograph network in China, a useful met hod to the determination of source parameters of small and moderate earthquakes is given in this paper.

依据震源理论 ,根据我国数字化地震台网目前的实际情况 ,在前人研究成果的基础上 ,提出一种用Pg波初动求中小[地]震震源参数的实用方法。

Source parameters and ambient Stress of small earthquakes in Shaannan And Guanzhong Region;

关中陕南地区一些小[地]震震源参数和环境剪应力的研究