地震工程学报2018，Vol.40Issue(6)：1337-1342,6.DOI:10.3969/j.issn.1000-0844.2018.06.1337
利用2014年云南地震验证与研究四川地震预警快速震级估算模型
Research and Validation of Rapid Magnitude Estimation Model for Early Earthquake Warning in the Sichuan Region Using Events from the Yunnan Region,2014
摘要
Abstract
An early earthquake warning system is one of the most effective ways for seismic hazard mitigation, in which earthquake magnitude estimation is the most important and difficult task. Currently, different empirical models have been used to estimate earthquake magnitudes based onτpmax, τc, pd , which are derived using an initial part of P-waves. Here, rapid magnitude estimation model for the Sichuan region was researched and verified based on three large earthquakes in the Yunnan region in 2014. The result showed that three models based on the three parameters above can effectively be used for magnitude estimation in a short time. As for the database in this study, Pd- 4 s model worked best among them and all three models did not underestimate the magnitude of large earthquake events. However, it is currently difficult to obtain the accurate epicentral/hypocentral distance in a short time window. Hence, τpmax, τc, pd models are recommended for use in the Yunnan earthquake early warning system.关键词
地震预警/震级估算/四川地区/云南地区Key words
arthquake early warning/ magnitude estimation/ Sichuan region/ Yunnan region分类
天文与地球科学引用本文复制引用
李鸿杰1,2,王志佳1,樊惠惠2,胡蓉平2,韩嘉怡2,张建经2..利用2014年云南地震验证与研究四川地震预警快速震级估算模型[J].地震工程学报,2018,40(6):1337-1342,6.基金项目
海南省科协青年科技英才学术创新计划项目(QCXM201807) （QCXM201807）
海南大学科研启动基金项目(KYQD(ZR)1723) （KYQD(ZR）
