|本期目录/Table of Contents|

[1]刘文邦,万玉杰,李玮杰.2016年青海门源6.4级地震前后波速比变化研究*[J].地震研究,2016,39(增刊):49-54.
　LIU Wenbang,WAN Yujie,LI Weijie.Research on Variation of Wave Velocity Ratio before and after Qinghai Menyuan MS6.4 Earthquake in 2016[J].Journal of Seismological Research,2016,39(增刊):49-54.
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2016年青海门源6.4级地震前后波速比变化研究*(PDF/HTML)

《地震研究》[ISSN:1000-0666/CN:53-1062/P]

卷:
39
期数:
2016年增刊
页码:
49-54
栏目:
出版日期:
2016-11-20

文章信息/Info

Title:
Research on Variation of Wave Velocity Ratio before and after Qinghai Menyuan MS6.4 Earthquake in 2016
作者:
刘文邦; 万玉杰; 李玮杰
青海省地震局,青海 西宁 810001
Author(s):
LIU Wenbang; WAN Yujie; LI Weijie
Earthquake Administration of Qinghai Province,Xining 810001,Qinghai,China
关键词:
门源6.4级地震;  波速比;  和达法;  单台法
Keywords:
Menyuan MS6.4 earthquake;  wave velocity ratio;  Wadati method;  single station method
分类号:
P315.727
DOI:
-
摘要:
基于青海地震台网2009年1月至2016年4月产出的震相观测报告数据,利用多台和达法和单台法对2016年门源6.4级地震前后震源周边地区波速比变化特征进行了研究。结果显示:多台和达法计算得到震前一年波速比存在低值变化,但异常不显著; 门源单台计算结果发现2014年初至2015年研究区波速比存在低值异常,之后返回平均值,其它台站异常不明显。分析认为:这可能和多台平均将异常减弱以及地震射线路径对震源区的覆盖有关。
Abstract:
Based on the observation report of seismic phases recorded by Qinghai Seismic Network from Jan.,2009 to Apr.,2016,we study the variation characteristics of wave velocity ratio before and after the 2016 Menyuan MS6.4 earthquake by using multi-station method and single station method. The results shows that the wave velocity ratio calculated by the multi station method shows a low value change which was not significant in one year before the earthquake. The wave velocity ratio calculated by the single Menyuan station shows a low value change from the beginning of 2014 to 2015,then returns to the average value,while the ratios of other stations dot's show abnormal change. The reason of the obtained result maybe have the relation with the multi-station average reduced the abnormity and the coverage of the source region by the seismic ray path.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2016-08-23
基金项目:青海省地震科学基金课题(2015A04)资助.

更新日期/Last Update: 2016-10-20