[1]张致伟.四川盆地显著地震的“窗口”效应[J].华南地震,2022,(04):41-47.[doi:10.13512/j.hndz.2022.04.06]
 ZHANG Zhiwei.The "Window Effect" of Significant Earthquakes in Sichuan Basin[J].,2022,(04):41-47.[doi:10.13512/j.hndz.2022.04.06]
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四川盆地显著地震的“窗口”效应()
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华南地震[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2022年04期
页码:
41-47
栏目:
华南地区地震预测指标体系专辑
出版日期:
2022-12-10

文章信息/Info

Title:
The "Window Effect" of Significant Earthquakes in Sichuan Basin
文章编号:
1001-8662(2022)04-0041-07
作者:
张致伟
四川省地震局,成都 610041
Author(s):
ZHANG Zhiwei
Sichuan Earthquake Agency , Chengdu 610041, China
关键词:
四川盆地显著地震四川及邻区强震“窗口”地震
Keywords:
Sichuan Basin Significant earthquake Sichuan and its adjacent area Strong earthquake Window earthquake
分类号:
P315
DOI:
10.13512/j.hndz.2022.04.06
文献标志码:
A
摘要:
为研究四川盆地显著地震与四川及邻区强震的关系,通过系统分析了1980年以来四川盆地4.5≤M≤5.0地震与四川及邻区M≥6.0地震的对应情况,并对其预报效能进行统计检验,试图为四川及邻区强震的预测提供依据。结果表明,四川盆地4.5≤M≤5.0地震对四川及邻区M≥6.0地震具有一定的预测意义,优势发震区域为巴颜喀拉块体中东部和川滇交界地区,发震优势时间为160天内。由此可见,四川盆地4.5≤M≤5.0地震可作为四川及邻区M≥6.0地震的中短期预测指标。
Abstract:
In order to study the relationship between the significant earthquakes and the strong earthquakes in Sichuan and its adjacent area, this paper systematically analyzed the correspondence between the earthquakes with 4.5≤M≤5.0 in Sichuan Basin and the earthquakes with M≥6.0 in Sichuan and its adjacent areas since 1980, and conducted statistical tests on their prediction efficiency, trying to provide a basis for the prediction of the strong earthquakes in Sichuan and its adjacent areas. The results show that the earthquakes with 4.5≤M≤5.0 in Sichuan Basin have good prediction significance for the earthquakes with M≥6.0 in Sichuan and its adjacent areas. The dominant seismogenic regions are the middle segment of Bayan Har block and the Sichuan-Yunnan border area, the dominant time is 160 days. It can be concluded that the earthquakes with 4.5≤M≤5.0 in Sichuan Basin can be used as a short and medium term prediction index for earthquakes with M≥6.0 in Sichuan and its adjacent areas.

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备注/Memo

备注/Memo:
收稿日期:2022-02-10
基金项目:国家重点研发计划专题(2021YFC3000705-07)和震情跟踪定向工作任务(2021020503)联合资助。
作者简介:张致伟(1983-),男,高级工程师,主要从事地震预报和数字地震学应用研究。E-mail:zzw1983107@163.com
更新日期/Last Update: 2022-12-10