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地震 ›› 2010, Vol. 30 ›› Issue (4): 106-113.

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20世纪90年代以来中国大陆地震Ⅵ度烈度区的分析研究

刘在涛, 姜立新, 杨桂岭, 冯蔚, 帅向华   

  1. 中国地震台网中心, 北京 100045
  • 收稿日期:2010-01-06 修回日期:2010-06-04 出版日期:2010-10-31 发布日期:2021-10-19
  • 作者简介:刘在涛(1977-), 男, 山东章丘人, 2005年获硕士学位, 主要从事地震应急系统建设与灾害评估等研究。
  • 基金资助:
    2009中国地震台网中心青年科技基金项目

Analysis of the Intensity Ⅵ Isoseismal Maps of Earthquakes in China Continent since 1990

LIU Zai-tao, JIANG Li-xin, YANG Gui-ling, FENG Wei, SHUAI Xiang-hua   

  1. China Earthquake Networks Center, Beijing 100045, China
  • Received:2010-01-06 Revised:2010-06-04 Online:2010-10-31 Published:2021-10-19

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摘要： 本文以105°E为界将中国大陆分为西部和东部, 对20世纪90年代以来中国大陆102个典型震例实际调查烈度结果进行分析研究。 分别研究了地震Ⅵ度烈度等震线的长轴与短轴之间、 长轴与震级之间的数量关系, 并给出了一定的经验相关系数; 另外, 还分析了地震Ⅵ度烈度区长轴方向与震中附近断层走向的一致性情况。 本文的思路和结果对快速准确判断地震影响范围具有一定实际意义。

关键词: 地震烈度, 震级, 等震线长轴, 等震线短轴, 断层走向

Abstract: The region surrounded by seismic intensity Ⅵ isoseismal line denotes the area that the earthquake affected. Seismic intensity Ⅵ isoseismal maps of 102 earthquakes in China since 1990 are analyzed in this paper. China continent is divided into west and east areas by the line of longitude 105°E and we'll research into the relation between the major axis and minor axis of the isoseismal maps and that between the major axis and magnitude in the two areas mentioned above. After this, we can get the experiential coefficient. Besides, the coherence of the direction between the intensity Ⅵ major axis and the nearest fault will be discussed. To a certain extent, this research is useful for fast estimation of the parameters(major axis, minor axis, direction of major axis) of the seismic intensity Ⅵ region in the earthquake emergency and response.

Key words: Seismic intensity, Magnitude, Isoseismal line, Fault direction

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