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首页> 外文期刊>Geophysical Research Letters >SEISMIC ACTIVITY AT THE CERRO PRIETO GEOTHERMAL AREA (MEXICO) FROM AUGUST 1994 TO DECEMBER 1995, AND ITS RELATIONSHIP WITH TECTONICS AND FLUID EXPLOITATION
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SEISMIC ACTIVITY AT THE CERRO PRIETO GEOTHERMAL AREA (MEXICO) FROM AUGUST 1994 TO DECEMBER 1995, AND ITS RELATIONSHIP WITH TECTONICS AND FLUID EXPLOITATION

机译：1994年8月至1995年12月Cerro Prieto地热区（墨西哥）的地震活动及其与构造和流体开发的关系

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A continuous monitoring of tile Cerro Prieto geothermal field was carried out from August 1994 to December 1995 to investigate tile seismicity of tectonic origin and the seismicity triggered by exploitation activities. Hypocenters for 148 events were located mainly around the northern end of the Cerro Prieto fault and within the geothermal zone. The estimated focal depths range mostly from 1 to 6 km, for earthquakes with magnitudes from 0.5 to 4.6. It was difficult to distinguish between natural and triggered seismicity. We observed a single case of an earthquake for which a correlation in time and space seems plausible with a sharp increase of fluid injection in a well located at less than 1 kin from the epicenter. Fault plane solutions of 26 events with magnitudes between 2.8 and 4.6 indicate right-lateral strike-slip motion for earthquakes that occur near the Cerro Prieto and imperial faults. Inside the geothermal zone, events with normal components of motion were recorded, as expected from the extensional stress regime of the pull-apart basin laying between both faults. [References: 15]
机译：1994年8月至1995年12月，对Cerro Prieto瓷砖地热田进行了连续监测，以调查构造起源的瓷砖地震活动性和开采活动引发的地震活动性。 148个事件的震源主要位于塞罗普列托断层的北端附近和地热区内。对于震级为0.5至4.6的地震，估计的震源深度范围大多为1至6 km。很难区分自然地震和触发地震。我们观察到一例地震，在距震中点不到1 kin的井中，随着注水量的急剧增加，时间和空间的相关性似乎是合理的。 26个事件的断层面解的幅度在2.8和4.6之间，表明发生在塞罗普列托附近和帝国断层附近的地震的右旋走滑运动。在地热区内部，记录了具有正常运动分量的事件，这是由位于两个断层之间的拉分盆地的拉伸应力状态所预期的。 [参考：15]

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