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南中国海区域海啸预警中心地震监测系统

徐志国 史健宇 李宏伟 王宗辰

徐志国, 史健宇, 李宏伟, 王宗辰. 南中国海区域海啸预警中心地震监测系统[J]. 地震科学进展, 2022, (10): 473-481. doi: 10.19987/j.dzkxjz.2022-053
引用本文: 徐志国, 史健宇, 李宏伟, 王宗辰. 南中国海区域海啸预警中心地震监测系统[J]. 地震科学进展, 2022, (10): 473-481. doi: 10.19987/j.dzkxjz.2022-053
Xu Zhiguo, Shi Jianyu, Li Hongwei, Wang Zongchen. The earthquake monitoring system in the South China Sea Tsunami Advisory Center[J]. Progress in Earthquake Sciences, 2022, (10): 473-481. doi: 10.19987/j.dzkxjz.2022-053
Citation: Xu Zhiguo, Shi Jianyu, Li Hongwei, Wang Zongchen. The earthquake monitoring system in the South China Sea Tsunami Advisory Center[J]. Progress in Earthquake Sciences, 2022, (10): 473-481. doi: 10.19987/j.dzkxjz.2022-053

南中国海区域海啸预警中心地震监测系统

doi: 10.19987/j.dzkxjz.2022-053
基金项目: 自然资源部“中印尼海洋与气候中心发展”项目(2029999001)资助。
详细信息
    作者简介:

    徐志国(1979-),男,高级工程师,主要从事地震学与海啸预警技术研究。E-mail:xuzhg04@sina.com

    通讯作者:

    史健宇(1991-),男,工程师,主要从事地震监测与海啸预警预报工作。E-mail:shijy@nmefc.cn

  • 中图分类号: P315.61

The earthquake monitoring system in the South China Sea Tsunami Advisory Center

  • 摘要: 简要介绍了南中国海区域海啸预警与减灾系统的建设和发展历程,同时重点阐述了地震监测系统构成及其基本功能。作为重要组成部分,地震监测系统通过地震数据的实时汇集、存储、自动处理和分析,并结合人机交互方式实现了地震定位、震源机制解和有限断层模型反演。实际应用表明,地震监测系统对全球6.0级以上地震定位时间不超过8 min,在震后10—15 min内完成W震相方法快速反演海底强震震源机制解,在震后短时间内完成有限断层模型反演,为海啸预警提供快速、准确、可靠的地震基本参数和震源特征参数。

     

  • 图  1  南中国海区域海啸预警中心预警责任区

    Figure  1.  The areas of responsibility for tsunami warning service of the South China Sea Tsunami Advisory Center

    图  2  全球和区域地震台网

    Figure  2.  The global and regional seismic networks

    图  3  2019年1—12月全球6级以上地震震源机制解。黑色线为全球主要板块边界[17]

    Figure  3.  The focal mechanism solutions of global earthquakes with M>6.0 from January to December 2019. The black lines are the boundaries of major plates in the world[17]

    图  4  马鲁古海地震震中位置和震源机制解

    Figure  4.  The epicenter location and focal mechanism solutions of Molucca Sea earthquake

    图  5  马鲁古海地震有限断层模型

    Figure  5.  Finite fault model of the Molucca Sea earthquake

    表  1  SCSTAC震后不同时间得到的马鲁古海MW7.1地震震源参数

    Table  1.   The source parameters of the MW7.1 Molucca Sea earthquake determined by SCSTAC at different time after origin time

    震后
    时间
    /min
    节面Ⅰ 节面 Ⅱ深度/kmMW台数沙滩球
    走向角
    倾角
    滑动角
    走向角
    倾角
    滑动角
    821948107 14457223.57.110
    102254511610516723.57.116
    122214910914457023.57.135
    152175210217407523.57.160
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-03-24
  • 修回日期:  2022-04-25
  • 网络出版日期:  2022-07-10

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