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首页> 外文期刊>Journal of Asian earth sciences >Temporal variation of gamma rays as a possible precursor of earthquake in the Longitudinal Valley of eastern Taiwan
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Temporal variation of gamma rays as a possible precursor of earthquake in the Longitudinal Valley of eastern Taiwan

机译：台湾东部纵谷可能是地震前兆的伽马射线时间变化

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A gamma-ray station has been established recently along the Longitudinal Valley in eastern Taiwan, which is a suture zone with NNE-striking on the boundary between Eurasia plate and Philippine Sea plate. Stresses arise in the crust in accordance with crustal deformations due to plate motions and geodynamic processes. Gamma-ray emission associated with the radioactive decay of radon, which is discharged into surface from deep source area, is continuously recorded in the station. Fluctuations of gamma-ray data are found to show a clear inverse correlation with atmospheric temperature. Based on the linear regression method, possible temperature effects can be removed and the corrected data can be obtained. Anomalous variations in the gamma-ray counting rate may appear as precursors a few days before some local earthquakes in eastern Taiwan. It is noted that there are two significant increases in the gamma-ray counting rate during the periods from March 20 to 26 and from April 22 to May 1, 2014. These increases are observed about one week before two earthquake swarms from March 26 to 27 and from May 3 to 5, 2014. Furthermore, a progressive anomaly with a continuous increase (similar to 8%) in gamma-ray count was recorded two weeks before the Fanglin Earthquake (M-L = 5.9, May 21, 2014) occurring in the Longitudinal Valley area. A continuous monitoring on the gamma-ray data can improve our understanding of the possible relationship between the observed gamma-ray variations and the earthquakes in the study area. (c) 2015 Elsevier Ltd. All rights reserved.
机译：最近在台湾东部的纵向山谷沿线建立了一个伽马射线站，这是一个缝线区，在欧亚大陆板块与菲律宾海板块之间的边界上进行了NNE打击。由于板块运动和地球动力学过程而产生的地壳变形会在地壳中产生应力。与deep的放射性衰变相关的伽马射线发射从深源区域排放到地面，并连续记录在该站中。发现伽马射线数据的波动与大气温度显示出明显的反相关关系。基于线性回归方法，可以消除可能的温度影响，并获得校正后的数据。台湾东部地区局部地震发生前几天，伽马射线计数率的异常变化可能是前兆。值得注意的是，从3月20日至26日以及2014年4月22日至5月1日，伽马射线计数率有两个显着增加。这些增加是在3月26日至27日发生两个地震群之前大约一周观察到的。从2014年5月3日至2014年5月3日。从2014年5月21日，房林地震（ML = 5.9，2014年5月21日）发生前两周，伽马射线计数持续增加（约8％），并出现连续性异常。纵向谷地区。连续监测伽马射线数据可以提高我们对观察到的伽马射线变化与研究区域地震之间可能关系的理解。 （c）2015 Elsevier Ltd.保留所有权利。

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