地球物理学进展 ›› 2019, Vol. 34 ›› Issue (5): 1770-1775.doi: 10.6038/pg2019CC0344

• 固体地球物理及空间物理学(大气、行星、地球动力学、重磁电及地震学、地热学) • 上一篇    下一篇

ISC-GEM地震目录的产出

李保昆1,冯向东2,万永革3,DomenicoDiGiacomo4,黄辅琼1,马延路1   

  1. 1. 中国地震台网中心,北京 100045
    2. 河北省地震局,石家庄 050021
    3. 防灾科技学院,河北燕郊 101601
    4. 国际地震中心,萨彻姆 RG19 4NS, 英国
  • 收稿日期:2018-11-23 修回日期:2019-05-22 出版日期:2019-10-28 发布日期:2019-10-28
  • 作者简介:李保昆,女,副研究员,主要从事地震监测研究.(E-mail: libk@seis.ac.cn)
  • 基金资助:
    国家自然科学基金项目(41774063);国家自然科学基金项目(41274061);中国地震局科技合作专项“ISC数据与应用平台”项目子课题“ISC资源挖掘”联合资助

Production of ISC-GEM earthquake catalogue

LI Bao-kun1,FENG Xiang-dong2,WAN Yong-ge3,Domenico Di Giacomo4,HUANG Fu-qiong1,MA Yan-lu1   

  1. 1. China Earthquake Networks Center, Beijing 100045, China
    2. Hebei Earthquake Agency, Shijiazhuang 050021, China
    3. Institute of Disaster Prevention, Hebei Yanjiao 101601, China
    4. International Seismological Centre,Thatcham RG19 4NS, UK
  • Received:2018-11-23 Revised:2019-05-22 Online:2019-10-28 Published:2019-10-28

摘要:

ISC-GEM地震目录是ISC发布和管理的一份全新的、基于仪器记录的全球中强震地震目录,于2013年首次发布.截至2018年2月,该目录从1900—2014年,跨越115年的时间尺度,共计28000余条地震,其中中国陆地区域的地震近千条.ISC-GEM地震目录的产出过程中,收集了1900年以后共百余年的观测数据,截至2018年6月,可用的地震波到时数据达20000000余条,振幅数据达6000000余条.目录中的所有地震经过两步法重新定位: EHB方法确定震源深度,ISCloc修定震中和发震时间.矩震级是唯一的震级标度,采用直接计算或由其他震级(MSmb)转换的方式而获得.

关键词: ISC-GEM, 地震目录

Abstract:

ISC-GEM earthquake catalogue is a new global instrumental moderate-large earthquake catalogue which released and managed by ISC and was available for the first time in 2013. By the end of February 2018 in the ISC-GEM earthquake catalogue, there are more than 28000 earthquakes which are from 1900 to 2014, span 115 years totally and include nearly 1000 events in China land. In the procedure of ISC-GEM catalogue production, the observational data of more than 100 years after 1900 were collected, the phase arrivals available exceeded 20000000 and the amplitudes available exceeded 6000000 by the end of June 2018. A two-tier relocation procedure is followed by all the events in the catalogue: the depth solutions are determined by EHB method, and the epicenters, also the event original times are refined by ISCloc. The single magnitude scale is moment magnitude MW, which is determined by the direct calculations or converted from other magnitudes (MS and mb).

Key words: ISC-GEM, Earthquake catalogue

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