地震地磁观测与研究
地震地磁觀測與研究
지진지자관측여연구
Seismological and Geomagnetic Observation and Research
2015年
4期
30-35
,共6页
地震目录%最小完整性震级%台网监测能力
地震目錄%最小完整性震級%檯網鑑測能力
지진목록%최소완정성진급%태망감측능력
earthquake catalogue%minimum complete magnitude%monitoring ability of seismic network
应用完整性震级范围法(EMR)、稳定b值法(MBS)、R—S检验法,对陕西中部、南部地区1970年以来地震目录完整性进行分析,认为:研究区内1970—1997年2.3级以上、1998—2008年1.8级以上、2009年至今1.4级以上地震目录基本完整.应用最大曲率法(MAXC),分析完整性震级的时空分布,结果显示,随着时间的推移,最小完整性震级呈下降趋势,且陕西地震台网监测能力在各区域间存在差异.
應用完整性震級範圍法(EMR)、穩定b值法(MBS)、R—S檢驗法,對陝西中部、南部地區1970年以來地震目錄完整性進行分析,認為:研究區內1970—1997年2.3級以上、1998—2008年1.8級以上、2009年至今1.4級以上地震目錄基本完整.應用最大麯率法(MAXC),分析完整性震級的時空分佈,結果顯示,隨著時間的推移,最小完整性震級呈下降趨勢,且陝西地震檯網鑑測能力在各區域間存在差異.
응용완정성진급범위법(EMR)、은정b치법(MBS)、R—S검험법,대협서중부、남부지구1970년이래지진목록완정성진행분석,인위:연구구내1970—1997년2.3급이상、1998—2008년1.8급이상、2009년지금1.4급이상지진목록기본완정.응용최대곡솔법(MAXC),분석완정성진급적시공분포,결과현시,수착시간적추이,최소완정성진급정하강추세,차협서지진태망감측능력재각구역간존재차이.
Entire magnitude range (EMR) method,Mc byb-value stability (MBS) method and R-S test have been used to analyze the earthquake catalogue in central region and southern region of Shaanxi Province since 1970 in this paper. The results show that the earthquake catalogue during 1970 and 1997 over 2.3 is integrated in our study area; And the minimum magnitude of integrated. earthquakes is from 1.8 for 1997-2008; From 1998 until now magnitude over 1.4 is integrated. In addition, the maximum curvature method (MAXC) is used to analyze the integrity of the magnitude of time and space distribution, the results shows that with the passage of time, the minimum integrity magnitude is on the decline, at the same time, the network monitoring ability to gradually reduce the gap between regions.
