| 印尼8.6级地震甘肃地区流体观测资料同震响应分析 |
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| 引用本文： | 张昱,李春燕,吴建华,冯博,李晓峰,张辉,张向红.印尼8.6级地震甘肃地区流体观测资料同震响应分析[J].西北地震学报,2016,38(5):830-837. |
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| 作者姓名： | 张昱 李春燕 吴建华 冯博 李晓峰 张辉 张向红 |
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| 作者单位： | 甘肃省地震局, 甘肃 兰州 730000,甘肃省地震局, 甘肃 兰州 730000,甘肃省地震局, 甘肃 兰州 730000,甘肃省地震局, 甘肃 兰州 730000,甘肃省地震局, 甘肃 兰州 730000,甘肃省地震局, 甘肃 兰州 730000,甘肃省地震局, 甘肃 兰州 730000 |
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| 基金项目： | 甘肃省科技计划（145RJZA186、1506RJZA85）；国家自然科学基金项目（41304048） |
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| 摘 要： | 2012年4月11日印尼苏门答腊发生8.6级、8.2级地震,我国大量地下流体台站记录到丰富的同震响应现象,甘肃地下流体观测资料也出现不同程度的同震响应。本文分析两次大地震时甘肃地区数字化水位、水温同震变化特征和响应能力,得到大部分井水位的同震响应有较一致的变化规律,且以振荡变化为主,震后较快恢复到原有状态,响应程度也与震级密切相关,即震级越大响应能力越强;由于水温和水位有不同的响应机理,因此水温不遵循这种规律,水温观测只有2个井点记录到同震响应,且记录的幅度基本相当,变化周期较大,恢复时间也较慢。
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| 关 键 词： | 印尼强震 同震响应 甘肃地区 水位 水温 |
| 收稿时间： | 2015/7/23 0:00:00 |
Co-seismic Response in Fluid Observation Data from Gansu duringthe Indonesia M8.6 Earthquake |
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| ZHANG Yu,LI Chun-yan,WU Jian-hu,FENG Bo,LI Xiao-feng,ZHANG Hui and ZHANG Xiang-hong.Co-seismic Response in Fluid Observation Data from Gansu duringthe Indonesia M8.6 Earthquake[J].Northwestern Seismological Journal,2016,38(5):830-837. |
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| Authors: | ZHANG Yu LI Chun-yan WU Jian-hu FENG Bo LI Xiao-feng ZHANG Hui and ZHANG Xiang-hong |
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| Institution: | Earthquake Administration of Gansu Province, Lanzhou 730000, Gansu, China,Earthquake Administration of Gansu Province, Lanzhou 730000, Gansu, China,Earthquake Administration of Gansu Province, Lanzhou 730000, Gansu, China,Earthquake Administration of Gansu Province, Lanzhou 730000, Gansu, China,Earthquake Administration of Gansu Province, Lanzhou 730000, Gansu, China,Earthquake Administration of Gansu Province, Lanzhou 730000, Gansu, China and Earthquake Administration of Gansu Province, Lanzhou 730000, Gansu, China |
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| Abstract: | During the occurrence of two strong earthquakes (M8.6 and M8.2) in Sumatra,Indonesia,on April 11,2012,a large number of underground fluid stations in China recorded abundant co-seismic response data,and data from underground fluid observations in Gansu also showed various degrees of co-seismic response. The co-seismic changes and the digital response of water levels and temperatures in Gansu during these two great earthquakes are analyzed in this study. The results show that the water level co-seismic response in most wells followed a relatively consistent change law,i.e.,the change was main oscillation variation,and rapidly recovered to its original state after the earthquake. The degree of response is closely related to the magnitude; the greater the magnitude,the stronger the response. Owing to the different response mechanisms of water level and temperature,water temperature does not follow this rule. In water temperature observations,only two wells had a record of co-seismic response,they showed approximate amplitudes and a relatively long cycle time (change period),but a slower recovery time. |
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| Keywords: | Indonesia strong earthquake co-seismic response Gansu area water level water temperature |
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