|本期目录/Table of Contents|

[1]陈 佳,叶 泵,高 琼,等.利用气枪震源信号研究2016年云龙MS5.0地震前后波速变化特征*[J].地震研究,2017,40(04):550-556.
　CHEN Jia,YE Beng,GAO Qiong,et al.Study on Travel Time Variation of the Wave from Large Volume Air-gun Source before and after the 2016 Yunlong MS5.0 Earthquake[J].Journal of Seismological Research,2017,40(04):550-556.
点击复制

利用气枪震源信号研究2016年云龙MS5.0地震前后波速变化特征*(PDF/HTML)

《地震研究》[ISSN:1000-0666/CN:53-1062/P]

卷:
40
期数:
2017年04期
页码:
550-556
栏目:
主动源专栏
出版日期:
2017-09-20

文章信息/Info

Title:
Study on Travel Time Variation of the Wave from Large Volume Air-gun Source before and after the 2016 Yunlong MS5.0 Earthquake
作者:
陈 佳; 叶 泵; 高 琼; 王 军; 李孝宾; 杨 军
(中国地震局滇西地震预报实验场,云南 大理 671000)
Author(s):
CHEN Jia; YE Beng; GAO Qiong; WANG Jun; LI Xiaobin; YANG Jun
(Western Yunnan Earthquake Prediction Study Area,China Earthquake Administraion,Dali 671000,Yunnan,China)
关键词:
气枪震源;  互相关检测技术;  走时变化;  云龙MS5.0地震
Keywords:
airgun seismic source;  cross correlation delay technique;  travel time variations;  Yunlong MS5.0 earthquake
分类号:
P315.31
DOI:
-
摘要:
以2016年5月18日云南云龙MS5.0地震为例,选取距震中较近的3个台站和较远的5个台站记录的2016年1—9月的气枪震源信号,使用互相关检测技术得到地震前后这8个台站各自稳定震相走时变化特征。结果表明:云龙地震前,各台均存在不同程度的走时异常变化。离震中较近的3台站中,震中西侧和东侧台站走时变化有一定差别,但都在地震前的3、4月变化较大; 而离地震较远的5个台站则变化趋势特征一致,幅度略有差别; 离地震较近台站走时变化幅度明显大于离地震较远台站; 地震前小于0.7
Abstract:
Taken the Yunnan Yunlong MS5.0 earthquake as an example,we chose the airgun signal data recorded by three seismic stations near the epicenter of the Yunlong earthquake and five seismic stations which is a bit further from the epicenterbetween January and September 2016.We studied travel time variety characteristics of the eight seismic stations by using cross-correlation time delay measurement technology.The results show that the travel time of every station had abnormal variation before the earthquake.For the three near stations,the travel time from the eastern and western of the earthquake was different,but they all had larger changes in March and April.For the five further stations,the trend characteristics were consistent,but the range was different.The change of the travel time from the near seismic stations is more lager than the far seismic stations.Before the earthquake,less than 0.7 m of water level change can't make a substantial change on travel time.Compared with the crustal deformation observation data of the FSQ water pipe tilt in Yunlong seismic station,we observed stress changes occurred in the same period of time.

参考文献/References:


陈佳,李孝宾,杨军,等.2016.云南宾川大容量气枪震源波形频谱特征分析[J].中国地震,32(2):216-221.
陈颙,朱日祥.2007.建立地震发射台的建议[J].地球科学进展,22(5):441-446.
林建民,王宝善,葛洪魁,等.2008.大容量气枪震源特征及地震波传播的震相分析[J].地球物理学报,51(1):206-212.
丘学林,陈颙,朱日详,等.2007.大容量气枪震源在海陆联测中的应用:南海北部实验结果分析[J].科学通报,52(4):463-469.
王宝善,杨微,王伟涛,等.2012.利用反褶积消除激发环境对水库大容量气枪信号的影响[C]//中国地球物理学会.中国地球物理第二十八届年会摘要文集.北京:中国学术期刊(光盘版)电子杂志社.
王伟涛,王宝善,葛洪魁,等.2009.利用主动震源检测汶川地震余震引起的浅层波速变化[J].中国地震,25(3):223-233.
魏芸芸,王海涛,苏金波,等.2016.新疆2次中强地震前气枪震源反射波震相走时异常变化初步研究[J].中国地震,32(2):270-281.
杨微,葛洪魁,王宝善,等.2010.由精密控制人工震源观测到的绵竹5.6级地震前后波速变化[J].地球物理学报,53(5):1149-1157,doi:10.3969/j.issn.0001-5733.2010.05.016.
刘自凤,苏有锦,王宝善,等.2015.宾川主动源地震波走时变化分析方法研究[J].地震研究,38(4):591-597.
翟秋实,姚华建,王宝善,等.2016.气枪震源资料反褶积方法及处理流程研究[J].中国地震,32(2):295-304.
AGGARWAL Y P,SYKES L R,ARMBRUSTER J,et al.1973. Premonitory changes in seismic velocities and prediction of earthquakes[J].Nature,241:101-104.
BIRCH F.1960.The velocity of compressional waves in rocks to 10 kilobars,Part 1[J].J Geophys Res,65:1083-1102.
BIRCH F.1961.The velocity of compressional waves in rocks to 10 kilobars,part 2[J].J Geophys Res,66:2199-2224.
CHEN Y,LIU L B,GE H K,et al.2008.Using an airgun array in a land reservoir as the seismic source for seismotectonic studies in northern China:experiments and preliminary results[J].Geophysical Prospecting,56(4):601-612.
LI Y G,CHEN P,COCHRAN E S,et al.2007.Seismic velocity variations on the San Aandreas fault caused by the 2004 M6 Parkfield Earthquake and their implications[J].Earth Planets and Space,59(1):21-31.
REASENBERG P,AKI K.1974.A precise continuous measurement of seismic velocity for monitoring in situ stress[J].J Geophys Res,79(2):399-406.
WANG B S,YANG W,YUAN S,et al.2010.An experimental study on the excitation of large volume airguns in a small volume body of water[J].Journal of Geophysics and Engineering,7(4):388-394.
WANG B S,ZHU P,CHEN Y,et al.2008.Continuous subsurface velocity measurement with coda wave interferometry[J].J Geophys Res,113(B12):36-44,doi:10.1029/2007JB005023.

备注/Memo

备注/Memo:
收稿日期:2017-04-11
基金项目:国家自然科学基金资助项目(41474048)、云南省青年基金科学项目(201506)、2017年度震情跟踪定向工作任务(2017010309)及云南省陈颙院士工作站专项金费共同资助.

更新日期/Last Update: 2017-09-20