摘要
从小震活动的时空分布以及测震学参数的变化出发，分析了苍山地震前地震活动的异常特征。研究结果表明，苍山5.2级地震前出现了地震活动图像和几种中、短期测震学参数异常，但无明显短临信息的前震活动。
On the basis of the temporal and spatial distribution of seismicity and changes ofseismometry parameters, the characteristics of seismic activity before Cangshanearthquake are analysed in this paper. The results indicate that there are anomalies ofthe seismicity pattern and several medium - and short-term seismometrical parametersoccurred before Cangshan earthquake with M=5.2, but there is not any short-termand impending information of the foreshock activity.
出处
《地震》
CSCD
北大核心
1997年第2期169-174,共6页
Earthquake
关键词
地震前兆
地震活动特征
震级
山东
Small earthquake activity, Anomalous character, Seismicity pattern,Cangshan earthquake
