The Analysis of Coseismic Response of 4-Component Borehole Strainmeters with High Sampling Rate
详细信息
- 责任者：Liu Qi (Institute of Earthquake Science ; CEA ; Beijing 100036 ; China) ; Zhang Jing
- 刊名：Earthquake Research in China
- 出版年：2013
- 卷期：29(1)
- 关键词：地震仪 ; seismographs ; 苏门答腊地震2004 ; Sumatra earthquake 2004 ; 印度尼西亚 ; Indonesia
- 页码：p.57-67
- 图表：illus., 1 table, 19 refs.
- 分类号：0500
- issnNo：ISSN1001-4683
- isbnNo：CN11-2008/P
摘要
In this paper, we adopt two sets of 10 Hz YRY 4-component borehole strainmeters and one set of 100 Hz FBS-3B broadband seismometer to study the 11 April 2012 MW8.6 earthquake off the west coast of northern Sumatra, and compare the response characteristics during the coseismic stage after preprocessing the data. We study the spectrum’s dynamic process during the coseismic stage with the S transformation method, and analyze on the spectrum’s details of different seismic phases. The S transformation results of collocated seismometer and borehole strainmeter show that the two coseismic spectrum evolutions have much in common and can help each other to identify the wave signals, so it’s reliable to observe the data at high frequency using the borehole strainmeters.
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