摘要
本文对泾阳台1982—1989年457次单台近震震级同省台网近震震级对比进行统计分析,并对1990年1月—8月50次记录到的近震进行检验,得到泾阳台测定M_L震级精度为±0.205,经校正后的精度为±0.129,下降率为37.1％,尤其震中距小于100km的地方震,单台震级精度为±0.527,校正后震级精度为土0.156,下降率为70.4％。
The comparison and statistical analysis between the local magnitudes measured by a single station and that registerd by the provincial network for 457 earthquakes from 1982 to 1989 as well as a check for 50 earthquakes from Jan, to Aug. 1990 at Jingyang seismic station have been made in the paper. It is concluded that the precision of M_L measured at Jingyang seismic station are±0.205 and±0.129 before and after correction respectively. The later shows a decrease of 37.1% in comparison with the former. Especially, the precision of local magnitude measured by a single station for earthquakes within 100km are±0.527 and±0.156 before and after correction respectively, the decrease rate being 70.4%.
出处
《地震地磁观测与研究》
1992年第2期39-43,共5页
Seismological and Geomagnetic Observation and Research
关键词
泾阳
地震台
震级
统计分析
Jingyang seismic station
Local magnitude
Statistical analysis
