收藏本站
收藏 | 投稿 | 论文排版

Detecting remotely triggered temporal changes around the Parkfield section of the San Andreas fault

Karim Ghazi Sabra  
【摘要】:Detecting temporal changes in fault zone properties at seismogenic depth have been a long-sought goal in the seismological community for many decades.Recent studies based on waveform analysis of repeating earthquakes have found clear temporal changes in the shallow crust and around active fault zones associated with the occurrences of large nearby and teleseismic earthquakes.However,repeating earthquakes only occur in certain locations and their occurrence times cannot be controlled,which may result in inadequate sampling of the interested regions or time periods.Recent developments in passive imaging via auto-and cross-correlation of ambient seismic wavefields (e.g.,seismic noise,earthquake coda waves) provide an ideal source for continuous monitoring of temporal changes around active fault zones.Here we conduct a systematic search of temporal changes along the Parkfield section of the San Andreas fault by cross-correlating relatively high-frequency (0.4-1.3 Hz) ambient noise signals recorded by 10 borehole stations in the High Resolution Seismic Network.After using stretch/compressed method to measure the delay time and the decorrelation-index between the daily noise cross-correlation functions (NCCFs),we find clear temporal changes in the median seismic velocity and decorrelation-index associated with the 2004 M6.0 Parkfield earthquake.We also apply the same procedure to the seismic data around five regional/teleseismic events that have triggered non-volcanic tremor in the same region,but failed to find any clear temporal changes in the daily NCCFs.The fact that our current technique can detect temporal changes from the nearby but not regional and teleseismic events,suggests that temporal changes associated with distance sources are very subtle or localized so that they could not be detected within the resolution of the current technique (~0.2%).

知网文化
【相似文献】
中国期刊全文数据库 前20条
1 刘桂萍,傅征祥;Regional seismicity triggered by the M_s=7.8 Tangshan event on July 28, 1976 and the stati cstress field change[J];Acta Seismologica Sinica(English Edition);2000年01期
2 刘桂萍,傅征祥;Regional seismicity triggered by the HyogoKen Nanbu, Japan, M=7.2 earthquake on January 17, 1995[J];Acta Seismologica Sinica(English Edition);1999年03期
3 邱泽华;阚宝祥;唐磊;张超凡;宋茉;;Inversion of coseismic stress-triggered fault slips using borehole strainmeter observations[J];Acta Seismologica Sinica(English Edition);2006年06期
4 Karim Ghazi Sabra;;Detecting remotely triggered temporal changes around the Parkfield section of the San Andreas fault[J];Earthquake Science;2010年05期
5 ;Spectral element analysis on the characteristics of seismic wave propagation triggered by Wenchuan M_s8.0 earthquake[J];Science in China(Series D:Earth Sciences);2009年06期
6 ;Discussion on 'Was the 2008 Wenchuan earthquake triggered by Zipingpu Reservoir?'[J];Earthquake Science;2010年06期
7 ;Finite element investigation of the poroelastic effect on the Xinfengjiang Reservoir-triggered earthquake[J];Science China(Earth Sciences);2012年12期
8 KATSUHIRO Nose;YUKI Soma;TAKAHISA Omata;SHINYA Otsuka-Yao-Matsuo;;Synthesis of CuInS_2 nanocrystals and their structural transformation triggered by ligand exchange[J];Chinese Science Bulletin;2009年21期
9 ;Study on Seismicity Triggered by Water Injection in Mine Wells in Zigong Using ETAS Model[J];Earthquake Research in China;2011年01期
10 ;Development and distribution of geohazards triggered by the 5.12 Wenchuan Earthquake in China[J];Science in China(Series E:Technological Sciences);2009年04期
11 D.Shashidhar;N.Purnachandra Rao;Harsh Gupta;;Delineation of Seismogenic Depths in the Reservoir Triggered Seismic Zone of Koyna-Warna Region,Western India[J];地学前缘;2009年S1期
12 ;The Effect of Static Stress Triggering of the M_S 7. 1 Yushu Earthquake[J];Earthquake Research in China;2012年03期
13 万永革;盛书中;周公威;郭燕平;尚丹;;Spheroidal oscillations of the Earth stimulated by the Sumatra-Andaman earthquake with CDSN data[J];Acta Seismologica Sinica(English Edition);2007年04期
14 ;Strong motions and engineering structure performances in recent major earthquakes[J];Earthquake Science;2010年01期
15 ;Risk Assessment and Treatment Countermeasures for the Barrier Lakes of Wenchuan Earthquake on May 12~(th),2008[J];Acta Geologica Sinica(English Edition);2009年04期
16 KATO Nobuaki;TSUNAKI Ryosuke;MUKAI Keiji;;Prediction of slope failure due to earthquake[J];Chinese Science Bulletin;2009年16期
17 ;Soft-sediment Deformation Structures Related to Earthquake from the Devonian of the Eastern North Qilian Mts.and Its Tectonic Significance[J];Acta Geologica Sinica(English Edition);2008年06期
18 ;Assessment of Geological Security and Integrated Assessment Geo-environmental Suitability in Worst-hit Areas in Wenchuan Quake[J];Acta Geologica Sinica(English Edition);2009年04期
19 Yasue Oki,Osamu Sato;Expulsion of geopressured hydrothermal system along active faults and its relation to the occurrence of earthquakes in the Shinanogawa seismic belt, Japan[J];Science in China(Series D:Earth Sciences);2005年02期
20 黎凯武;Evidence of earthquakes triggered by the tidal force of the sun and the moon——On the temporal characteristics of the earthquakes in Xingtai,Hejian and Tangshan[J];Acta Seismologica Sinica(English Edition);1998年05期
中国重要会议论文全文数据库 前5条
1 ;Spatial distribution analysis of landslides triggered by 2008.5.12 Wenchuan Earthquake,China[A];中国科学院地质与地球物理研究所第十届(2010年度)学术年会论文集(下)[C];2011年
2 Zhongjie Zhang;Yanghua Wang;Yangfan Deng;Lin Chen;Jing Wu;Jiwen Teng;Yun Chen;Weiming Fan;Giuliano Panza;;Geophysical constraints on mesozoic disruption of North China Craton by underplating-triggered lower-crust flow of the Archaean lithosphere[A];中国科学院地质与地球物理研究所2013年度(第13届)学术论文汇编——特提斯研究中心[C];2014年
3 Shengwen Qi;Qiang Xu;Hengxing Lan;Bing Zhang;Jianyou Liu;;Resonance effect existence or not for landslides triggered by 2008 Wenchuan earthquake:A reply to the comment by Drs.Xu Chong and Xu Xiwei[A];中国科学院地质与地球物理研究所2012年度(第12届)学术论文汇编——工程地质与水资源研究室[C];2013年
4 ;Rock avalanches triggered by oblique-thrusting during the 1 2 May 2008 Ms 8.0 Wenchuan earthquake,China[A];中国科学院地质与地球物理研究所第11届(2011年度)学术年会论文集(上)[C];2012年
5 ;Spatial distribution of landslides triggered by the 2008 Ms 8.0 Wenchuan earthquake,China[A];中国科学院地质与地球物理研究所第11届(2011年度)学术年会论文集(上)[C];2012年
 快捷付款方式  订购知网充值卡  订购热线  帮助中心
  • 400-819-9993
  • 010-62982499
  • 010-62783978