| 基于统计学的地震显著平静阈值估计 |
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| 引用本文： | 姜祥华,陈佳维,解孟雨,孟令媛. 基于统计学的地震显著平静阈值估计[J]. 地震地磁观测与研究, 2020, 41(2): 23-30. DOI: 10.3969/j.issn.1003-3246.2020.02.003 |
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| 作者姓名： | 姜祥华 陈佳维 解孟雨 孟令媛 |
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| 作者单位： | 1.中国北京 100045 中国地震台网中心;2.中国北京 100085 中国地震局地壳应力研究所 |
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| 基金项目： | 中国地震台网中心青年科技基金（项目编号：QNJJ201808）；中央级公益性科研院所基本科研业务专项（项目编号：ZDJ2018-04） |
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| 摘 要： | 提出具有统计学意义的地震显著平静阈值估算方法,用于中国大陆及川滇、新疆和华北地区中强震活动分析,在不同区域得到不同起始震级的显著平静阈值范围。结果显示:(1)中国大陆7级、6级和5级地震显著平静的阈值范围分别为3.9—6.2年、7.9—9.6个月和62—70天;(2)川滇地区6级和5级地震显著平静的阈值范围分别为2.1—2.9年和7.0—8.5个月;(3)新疆地区6级和5级地震显著平静的阈值范围分别为2.6—4.0年和8.5—10.5个月;(4)华北地区6级和5级地震显著平静的阈值范围分别为11.7—23.4年和5.2—7.7年。
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| 关 键 词： | 地震平静 显著性分析 统计地震学 地震活动性 |
A method based on statistics for estimating the threshold of significant seismic quiescence and application case |
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| Jiang Xianghua,Chen Jiawei,Xie Mengyu,Meng Lingyuan. A method based on statistics for estimating the threshold of significant seismic quiescence and application case[J]. Seismological and Geomagnetic Observation and Research, 2020, 41(2): 23-30. DOI: 10.3969/j.issn.1003-3246.2020.02.003 |
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| Authors: | Jiang Xianghua Chen Jiawei Xie Mengyu Meng Lingyuan |
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| Affiliation: | 1.China Earthquake Networks Center, Beijing 100045, China;2.The Institute of Crustal Dynamics, China Earthquake Administration, Beijing 100085, China |
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| Abstract: | We propose a method based on statistics for estimating the threshold of significant seismic quiescence. The method is applied to the Chinese Mainland, Sichuan and Yunnan area, Xinjiang area, and North China. And thresholds of significant seismic quiescence are obtained in these areas with different initial magnitudes.①The thresholds of significant seismic quiescence with MS ≥ 7.0, 6.0, and 5.0 are 3.9-6.2 years, 7.9-9.6 months, and 62-70 days, respectively, in the Chinese Mainland.②The thresholds of significant seismic quiescence with MS ≥ 6.0 and 5.0 are 2.1-2.9 years and 210-255 days, respectively, in Sichuan and Yunnan area.③The thresholds of significant seismic quiescence with MS ≥ 6.0 and 5.0 are 2.6-4.0 years and 255-318 days, respectively, in Xinjiang area. ④The thresholds of significant seismic quiescence with MS ≥ 6.0 and 5.0 are 11.7-23.4 years and 5.2-7.7 years, respectively, in North China. |
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| Keywords: | seismic quiescence significance analysis statistical seismology seismicity |
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