海南地区3口井水位对苏门答腊两次大地震的同震记录及其特征分析

地震地质 ›› 2007, Vol. 29 ›› Issue (4): 883-893.

海南地区3口井水位对苏门答腊两次大地震的同震记录及其特征分析

李志雄, 顾申宜, 袁锡文, 刘伟, 明穗花, 杨光, 郭南

海南省地震局, 海口 570203

收稿日期:2007-02-07 修回日期:2007-05-07 出版日期:2007-12-04 发布日期:2009-09-01
作者简介:李志雄,男,1964年生,1989年毕业于中国科学技术大学地球物理学专业,获得硕士学位,高级工程师,现主要从事监测预报和信息网络工作,电话:0898-65342760,E-mail:lizhixiong12@sohu.com.
基金资助:
地震科学联合基金(105086)资助

ANALYSIS ON CHARACTERISTICS OF COSEISMIC RESPONSE OF WATER LEVEL RECORDED IN THREE WELLS IN HAINAN AREA TO THE TWO SUMATRA-ANDEMAN STRONG EARTHQUAKES

LI Zhi-xiong, GU Shen-yi, YUAN Xi-wen, LIU Wei. MING Sui-hua, YANG Guang, GUO Nan

Earthquake Administration of Hainan Province, Haikou 570203, China

Received:2007-02-07 Revised:2007-05-07 Online:2007-12-04 Published:2009-09-01

摘要/Abstract

摘要： 分析了琼海加积井在苏门答腊M_S8.7和M_S8.5地震时水震波特征及震后出现的水位阶变特征,初步探讨了水位阶变现象的机理。同时还分析了三亚南滨井、文昌潭牛井在苏门答腊M_S8.7和M_S8.5地震时水震波的高采样率数字化观测资料,结果显示:3口井的水震波优势周期比较一致,同一地震在不同井孔的水震波幅度差别较大,同一井孔不同震级地震的水震波振荡持续时间不同。

关键词: 苏门答腊大地震, 数字化水位记录, 同震响应, 海南地区

Abstract: The characteristics of seismic water-level fluctuations of the two Sumatra-Andeman strong earthquakes with magnitude 8.7 and 8.5 on December 26,2004 and March 29,2005 recorded at Jiaji station,Qionghai,Hainan were analyzed,the features of the infreguent "terrace" changes of the well water-level after the two earthquakes also were analyzed,the mechanism of "terrace" of the well water-level changes has been primarily discussed.Then the digital observation information with high sample ratio of the Sumatra-Andeman strong earthquakes with magnitude 8.7 and 8.5 at Nanbin station,Sanya and Tanniu station,Wenchang was analyzed.The results suggest that the dominant period of the seismic wave of well water-level at the two wells was comparatively accordant,the amplitudes of seismic water-level fluctuations of the same earthquake at the two wells were clearly different,the time duration of seismic water-level fluctuations of different earthquakes at the same well was also clearly different.

Key words: Sumatra-Andeman strong earthquake, digital records of well water level, coseismic response, Hainan area

中图分类号:

P315.72⁺3

李志雄, 顾申宜, 袁锡文, 刘伟, 明穗花, 杨光, 郭南. 海南地区3口井水位对苏门答腊两次大地震的同震记录及其特征分析[J]. 地震地质, 2007, 29(4): 883-893.

LI Zhi-xiong, GU Shen-yi, YUAN Xi-wen, LIU Wei. MING Sui-hua, YANG Guang, GUO Nan. ANALYSIS ON CHARACTERISTICS OF COSEISMIC RESPONSE OF WATER LEVEL RECORDED IN THREE WELLS IN HAINAN AREA TO THE TWO SUMATRA-ANDEMAN STRONG EARTHQUAKES[J]. SEISMOLOGY AND GEOLOGY, 2007, 29(4): 883-893.

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