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[1]解孟雨,孟令媛.推定最大余震震级法在南北地震带的应用[J].地震研究,2022,45(03):424-433.[doi:10.20015/j.cnki.ISSN1000-0666.2022.0042 ]
　XIE Mengyu,MENG Lingyuan.Application of the Method of the Inferred Magnitude of the Largest Aftershock in the North-South Seismic Belt[J].Journal of Seismological Research,2022,45(03):424-433.[doi:10.20015/j.cnki.ISSN1000-0666.2022.0042 ]
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推定最大余震震级法在南北地震带的应用(PDF/HTML)

《地震研究》[ISSN:1000-0666/CN:53-1062/P]

卷:
45
期数:
2022年03期
页码:
424-433
栏目:
生命线工程系统抗震防灾专栏
出版日期:
2022-06-20

文章信息/Info

Title:
Application of the Method of the Inferred Magnitude of the Largest Aftershock in the North-South Seismic Belt
作者:
解孟雨; 孟令媛
(中国地震台网中心,北京 100045)
Author(s):
XIE Mengyu; MENG Lingyuan
(China Earthquake Networks Center,Beijing 100045,China)
关键词:
推定最大余震震级法;  b值;  南北地震带;  余震序列;  G-R定律
Keywords:
inferred magnitude of the largest aftershock;  b-vaule;  the North-South Seismic Belt;  aftershock sequences;  the Gutenberg-Richter law
分类号:
P315.3
DOI:
10.20015/j.cnki.ISSN1000-0666.2022.0042
摘要:
针对2000—2020年南北地震带21个MS≥6.0地震序列,利用推定最大余震震级法,采用不同的最小完备震级MC和b值计算方法,分别给出了实际最大余震震级的估计值,分析了估算效果。结果显示:从整体上看,推定最大余震震级法可以给出实际最大余震震级的有效估计值,而且随着时间推移,估计误差逐步减小、趋于稳定。从计算方法来看,使用GFT和修正MAXC的混合方法计算最小完备震级,并且采用最大似然法计算b值时,推定最大余震震级法的估算误差较小,且估算正确的结果较多。
Abstract:
Using the method of the inferred magnitude of the largest aftershock,and different methods of calculating the minimum magnitude of completeness(MC)and b-value,we estimate the magnitude of the largest aftershocks of 21 MS≥6.0 earthquake sequences in the North-South Seismic Belt from 2000 to 2020,and verify the results.We find that generally,the method of the inferred magnitude can help to accurately estimate the magnitude of the largest aftershock.The estimation error gradually decreases and tends to be unvariant along with time.When we mix the goodness of fit test(GFT)with the modified maximum curvature method(MAXC)to calculate the minimum magnitude of completeness,and use the maximum likelihood method to calculate b-value,the estimation error of the magnitude of the largest aftershock is very small and there are more correct results.

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备注/Memo

备注/Memo:
收稿日期:2021-04-27
基金项目:地震科技星火计划项目“基于b值和波形动态分析序列特征”,国家重点研发计划项目(2021YFC3000705)和台网青年项目“强震危险地点预测方法研究——以南北地震带为例”联合资助.

更新日期/Last Update: 2022-07-01