全国水温台网井水温度2008年动态及其汶川地震前后的异常变化
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摘要
在全面收集与系统分析全国水温台网近300口观测井2008年动态的基础上,梳理出井水温的正常年动态与固体潮,并进一步识别与分析2008-05-12汶川M_S8.0地震震前、震时及震后的异常变化;归纳出全国井水温动态的正常年动态类型、特征及水温潮汐的基本特征,识别出汶川地震前14口井出现的异常,并分析该异常的形态与时空分布特征;分析125口井的同震响应与震后变化特征,进一步论证利用井水温动态监测地震前兆的可能性与存在的问题,提出把现有的水温观测网进一步改造与升级、开拓地壳热动态与地震活动关系观测与研究的创新思路。
Based on comprehensive collection and systematical analysis of China water temperature observatory dynamics in 2008 within nearly 300 wells, we first ascertain the relationship between water temperature dynamics and earth tide and analyze anomalous change before and after the May 12 th Wenchuan M_S8.0 earthquake. Second, we clear the normal drill water temperature dynamics in year time and the basic features of temperature tidal effects, determining that there are 14 abnormal wells before earthquake. We summarize anomaly patterns and the spatial-temporal characteristics, analyzing coseismic corresponding characteristics of 125 wells. Finally, we further demonstrate possibilities and problems in water temperature and seismic monitoring, and come up with upgrading the hydrothermal observation network to a geothermal observation network, to explore the new ideas in the study of the relationship between crust thermal and seismic activities.
Based on comprehensive collection and systematical analysis of China water temperature observatory dynamics in 2008 within nearly 300 wells, we first ascertain the relationship between water temperature dynamics and earth tide and analyze anomalous change before and after the May 12 th Wenchuan M_S8.0 earthquake. Second, we clear the normal drill water temperature dynamics in year time and the basic features of temperature tidal effects, determining that there are 14 abnormal wells before earthquake. We summarize anomaly patterns and the spatial-temporal characteristics, analyzing coseismic corresponding characteristics of 125 wells. Finally, we further demonstrate possibilities and problems in water temperature and seismic monitoring, and come up with upgrading the hydrothermal observation network to a geothermal observation network, to explore the new ideas in the study of the relationship between crust thermal and seismic activities.
引文
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[5] 赵刚,王军,何案华,等.地热正常动态特征的研究[J].地震,2009(3):109-116(Zhao Gang,Wang Jun,He Anhua,et al.Study of Normal Geothermal Dynamics[J].Earthquake,2009(3):109-116)
[6] 车用太,刘喜兰,姚宝树,等.首都圈地区井水温度的动态类型及其成因分析[J].地震地质,2003,25(3):403-420(Che Yongtai,Liu Xilan,Yao Baoshu,et al.Well Water Temperature Behaviors in Capital Circle and Their Formation Mechanism[J].Seismology and Geology,2003,25(3):403-420)
[7] 陈大庆,刘耀炜,杨选辉,等.远场大震的水位、水温同震响应及其机理研究[J].地震地质,2007,29(1):122-132(Chen Daqing,Liu Yaowei,Yang Xuanhui,et al.Co-Seismic Water Level,Temperature Responses of Some Wells to Far-Field Strong Earthquakes and Their Mechanisms [J].Seismology and Geology,2007,29(1):122-132)
[8] 车用太,何案华,鱼金子.水温微动态形成的水热动力学机制与地热动力学两种机制[J].地震学报,2014,36(1):106-117(Che Yongtai,He Anhua,Yu Jinzi.Mechansims of Water-Heat Dynamics and Earth-Heat Dynamics of Well Water Temperature Micro-Hehavior[J].Acta Seismological Sinica,2014,36(1):106-117)
[9] 石耀霖,曹建玲,马丽,等.唐山井水温的同震变化及其物理解释[J].地震学报,2007,29(3):265-273(Shi Yaolin,Cao Jianling,Ma Li,et al.Tele-Seismic Coseismic Well Temperature Changes and Their Interpretation[J].Acta Seismological Sinica,2007,29(3):265-273)
[2] 张彬,刘耀炜,杨选辉.中国大陆井水温对汶川8.0级、玉树7.1级、芦山7.0级和岷县6.6级地震响应特征的对比研究[J].地震工程学报,2013,35(3):535-541(Zhang Bin,Liu Yaowei,Yang Xuanhui.Contrastive Study on Co-Seismic Respone Characteristics of Well Water Temperature in Wenchuan(M8.0),Yushu(M7.1),Lushan(M7.0) and Minxian(M6.6) Earthquakes[J].China Earthquake Engineering Journal,2013,35(3):535-541)
[3] 车用太,王基华,林元武,等.张北-尚义地震前的地下流体异常及其跟踪预报[J].地震地质,1998,20(2):99-104(Che Yongtai,Wang Jihua,Lin Yuanwu,et al.The Anomalies of Subsurface Fluids before the Zhangbei-Shangyi Earthquake and Trace Prediction of the Earthquake[J].Seismology and Geology,1998,20(2):99-104)
[4] 刘耀炜,孙小龙,王世芹,等.井孔水温异常与2007年宁洱6.4级地震关系分析[J].地震研究,2008,31(4):347-353(Liu Yaowei,Sun Xiaolong,Wang Shiqin,et al.Relationship of Bore-Hole Water Temperature Anomaly and the 2007 Ninger M6.4 Earthquake[J].Journal of Seismological Research,2008,31(4):347-353)
[5] 赵刚,王军,何案华,等.地热正常动态特征的研究[J].地震,2009(3):109-116(Zhao Gang,Wang Jun,He Anhua,et al.Study of Normal Geothermal Dynamics[J].Earthquake,2009(3):109-116)
[6] 车用太,刘喜兰,姚宝树,等.首都圈地区井水温度的动态类型及其成因分析[J].地震地质,2003,25(3):403-420(Che Yongtai,Liu Xilan,Yao Baoshu,et al.Well Water Temperature Behaviors in Capital Circle and Their Formation Mechanism[J].Seismology and Geology,2003,25(3):403-420)
[7] 陈大庆,刘耀炜,杨选辉,等.远场大震的水位、水温同震响应及其机理研究[J].地震地质,2007,29(1):122-132(Chen Daqing,Liu Yaowei,Yang Xuanhui,et al.Co-Seismic Water Level,Temperature Responses of Some Wells to Far-Field Strong Earthquakes and Their Mechanisms [J].Seismology and Geology,2007,29(1):122-132)
[8] 车用太,何案华,鱼金子.水温微动态形成的水热动力学机制与地热动力学两种机制[J].地震学报,2014,36(1):106-117(Che Yongtai,He Anhua,Yu Jinzi.Mechansims of Water-Heat Dynamics and Earth-Heat Dynamics of Well Water Temperature Micro-Hehavior[J].Acta Seismological Sinica,2014,36(1):106-117)
[9] 石耀霖,曹建玲,马丽,等.唐山井水温的同震变化及其物理解释[J].地震学报,2007,29(3):265-273(Shi Yaolin,Cao Jianling,Ma Li,et al.Tele-Seismic Coseismic Well Temperature Changes and Their Interpretation[J].Acta Seismological Sinica,2007,29(3):265-273)