国际地震动态
國際地震動態
국제지진동태
RECENT DEVELOPMENTS IN WORLD SEISMOLOGY
2014年
9期
24-28,34
,共6页
地震能量%能量震级%芦山地震%鲁甸地震
地震能量%能量震級%蘆山地震%魯甸地震
지진능량%능량진급%호산지진%로전지진
earthquake energy%energy magnitude%Lushan earthquake%Ludian earth-quake
根据美国地震学研究联合会(IRIS)的地震能量查询网站公布的地震波辐射能量和能量震级数据,2014年8月3日鲁甸M6.5地震的宽频带(0.5~70 s)能量震级为6.4,2013年4月20日芦山M7.0地震为6.7,相差0.3级,而高频(0.5~2 s)能量震级分别为6.7和6.9,相差0.2级,即芦山地震释放的高频地震波能量为鲁甸地震的2倍。本文根据这些数据对鲁甸地震的特征进行了分析,认为从地震监测的角度,在地震发生后,尽快给出地震波释放能量估计,对于及时确定大地震应急响应级别和采取相应减灾措施是有实际意义的。
根據美國地震學研究聯閤會(IRIS)的地震能量查詢網站公佈的地震波輻射能量和能量震級數據,2014年8月3日魯甸M6.5地震的寬頻帶(0.5~70 s)能量震級為6.4,2013年4月20日蘆山M7.0地震為6.7,相差0.3級,而高頻(0.5~2 s)能量震級分彆為6.7和6.9,相差0.2級,即蘆山地震釋放的高頻地震波能量為魯甸地震的2倍。本文根據這些數據對魯甸地震的特徵進行瞭分析,認為從地震鑑測的角度,在地震髮生後,儘快給齣地震波釋放能量估計,對于及時確定大地震應急響應級彆和採取相應減災措施是有實際意義的。
근거미국지진학연구연합회(IRIS)적지진능량사순망참공포적지진파복사능량화능량진급수거,2014년8월3일로전M6.5지진적관빈대(0.5~70 s)능량진급위6.4,2013년4월20일호산M7.0지진위6.7,상차0.3급,이고빈(0.5~2 s)능량진급분별위6.7화6.9,상차0.2급,즉호산지진석방적고빈지진파능량위로전지진적2배。본문근거저사수거대로전지진적특정진행료분석,인위종지진감측적각도,재지진발생후,진쾌급출지진파석방능량고계,대우급시학정대지진응급향응급별화채취상응감재조시시유실제의의적。
According to the seismic energy and energy magnitude data published by IRIS website on the earthquake energy product query,the broadband(BB:0.5~70 s)energy mag-nitude of Ludian M6.5 earthquake,August 3,2014,and Lushan M7.0 earthquake,April 20,2013,are 6.4 and 6.7,respectively,and the high frequency(HF:0.5~2.0 s)energy magnitude are 6.7 and 6.9,respectively.For the high frequency energy magnitude,the difference for these two earthquakes is 0.2,and hence the high frequency seismic energy released by Lushan M7.0 earthquake is two times of that released by Ludian M6.5 earth-quake.The characteristics of Ludian earthquake are analyzed based on these data in this paper. From the view point of earthquake monitoring,getting the estimation of earthquake energy as soon as possible j ust after the occurrence of a strong earthquake has practical importance for the determination of the earthquake response level and adopting corresponding measures for disaster mitigation.