| 形变速率累加法在青藏块体东北缘跨断层水准资料中的应用 |
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| 引用本文： | 唐红涛,张希,贾鹏,李瑞莎.形变速率累加法在青藏块体东北缘跨断层水准资料中的应用[J].高原地震,2012,24(2):15-19. |
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| 作者姓名： | 唐红涛 张希 贾鹏 李瑞莎 |
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| 作者单位： | 中国地震局第二监测中心,陕西西安,710054 |
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| 摘 要： | 运用形变速率累加法对青藏决体东北缘积累近30年的6个跨断层流动水准场地观测资料进行了分析,讨论了异常信息提取的经验和方法,搜集并分析了各场地周围400 km范围内的震例,获得了形变速率累加法的应用经验与前兆异常特征:①异常累加图比原始曲线图在异常的识别上更加突出和直观;②该方法只对超出控制限较连续的异常点残差进行累加,发生间隔较长的异常点则不进行累加计算;③从异常开始到发生地震的时间上得知,该方法可作为地震中期预报指标。
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| 关 键 词： | 速率累加 跨断层水准 异常分析 地震预报 |
APPLICATION OF DEFORMATION RATE ACCUMULATION FOR CROSS- FAULT LEVELING IN NORTHEASTERN MARGINS OF QINGHAI- TIBET BLOCK |
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| TANG Hongtao,ZHANG Xi,JIA Peng,LI Ruisha.APPLICATION OF DEFORMATION RATE ACCUMULATION FOR CROSS- FAULT LEVELING IN NORTHEASTERN MARGINS OF QINGHAI- TIBET BLOCK[J].Plateau Earthquake Research,2012,24(2):15-19. |
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| Authors: | TANG Hongtao ZHANG Xi JIA Peng LI Ruisha |
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| Institution: | (Second Crust Monitoring and Application Center, CEA , Xi ＇ an 710054, China ) |
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| Abstract: | Six cross - fault leveling data of thirty years in northeastern margins of Qinghai - Tibet block withthe method of Deformation Rate Accumulation are analyzed, and the experience and method for extracting a- nomaly information are discussed, the relevant earthquake cases within 400 km are gathered and analyzed, the experience and characteristics of deformation rate accumulation show： ①Anomaly accumulation chart is moreprominent and intuitive than primary curve; ②Only out -of- range and continuous anomaly data is cumula- ted, and discontinuous anomaly data isn＇ t cumulated ; ③From the time that beginning of anomaly to the earth- quakes, this method can be the medium - term indicator of the earthquake prediction. |
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| Keywords: | Rate accumulation Cross -Fault leveling Anomaly analysis Earthquake prediction |
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