摘要
根据湟源地震台单台记录到的小震活动情况,进行了周频、月频的系统分析,发现小震活动周、月频次低值异常与周围300km范围内的5 0级以上中强震有一定的对应关系。通过分析认为湟源台能以小震活动情况灵敏的反映区域应力场的变化情况,可以作为地震窗;并对该窗应震效能作出了评价,认为可以用于地震预报工作。
According to the microseismicity recorded by Huangyuan station,weekly and monthly frequencies are analyzed.The result shows that lower frequencies are reflected to Ms≥5.0 earthquakes around 300 km area.Huangyuan station is sensitive to microearthquakes,and it can be regarded as a seismic window to predict earthquakes.
出处
《高原地震》
2004年第4期22-25,共4页
Plateau Earthquake Research
关键词
小震活动
地震窗
效能评价
Microseismicity
Seismic window
Prediction ability
