摘要
统计分析安徽大蜀山地震台体应变记录曲线的同震形变波,总结2011—2014年国内外同震形变波形特征,绘制体应变映震能力图。结果显示,体应变能清晰记录远大地震形变波。对于全球7级以上地震,体应变记录到明显地震形变波占地震总数的83%;对于中国6级以上地震,体应变记录到明显地震形变波占总数的86%;记录最小地震为4.8级,震中距133 km,最远地震为7.6级,震中距为18 552 km。
Based on the analysis of the coseismic variation recorded at Dashushan Seismic Station in Anhui Province, and the summaries of the coseismic deformation waveform characteristics at home and abroad, a formula of earthquake reflecting ability of body strain is figured out. The results show that the bore-hole body strain is better records far and big seismic waveform. It recorded more than 83% of global M ≥ 7 magnitude and 86% domestic M ≥ 6 magnitude deformation waves from 2011 to 2014. The magnitude of the minimum earthquake recorded is M = 4.8 with epicentral distance 133 km,while the farthest earthquake recorded is M = 7.6 with epicentral distance 18 552 km.
出处
《地震地磁观测与研究》
2016年第1期91-95,共5页
Seismological and Geomagnetic Observation and Research
基金
2015中国地震局三结合课题(编号:151202)资助
关键词
体应变
震时形变波
同震变化
映震能力
body strain
coseismic variation
wave characteristic
earthquake reflecting ability
