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白家疃地温异常变化与地震的对应关系

The relation between earthquakes and anomalous variations ofgeothermal temperature in Beijing Observatory

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【作者】 田华仲阳张之立

【Author】 Tian Hua;Zhong Yang;and Zhang Zhili(Institute of Geophysics,State Seismological Bureau,Beijing 100081,China)

【机构】 国家地震局地球物理研究所

【摘要】 根据1985年9月─1992年12月白家疃地温微变化的测量数据,用幅差法对地温的日均值变化进行了地温异常变化的判别,并与在此期间发生在首都圈(38°30'─41°N,113°─120°E)内的、M_L在3.5以上的地震进行了对应关系统计分析。结果表明,有57%的判别出的地温异常变化与46%的选出地震有对应关系。随着震级的提高,有更高比例的地震和地温异常变化有对应关系。当震中距在100─250km范围内,有大致不变比例的地震与地温异常变化有对应关系。

【Abstract】 Based on the measured data of the microchange of the geothermal temperature fromSeptember of 1985 to December of 1992 in Beijing Baijiatuan Observatory,wejudged theanomalous variations of the geothermal temperature to its day-averaged values using theamplitudevaried method,and statistically analyzed the relation between the anomalousvariations and the earthquakes with M_L≥3.5 which occurred in Capital area(38°30’─41°N,113°─120°E)during this period.The results demonstrate that there is a relationbetween 57%of the judged anomalous variations in the geothermal temperature and46%of the selected earthquakes.With the magnitude higher,the relation ratio of earth-quakes to anomalous variations in the geothermal temperature is greater.The earth-quakes with epicenter distances between 100 and 250 kilometers has roughly a un-changed relation ratio of the geothermal anomaly.

  • 【文献出处】 地震地磁观测与研究 ,SEISMOLOGICAL AND GEOMANGNETIC OBSERVATION AND RESEARCH , 编辑部邮箱 ,1994年03期
  • 【分类号】P315.7
  • 【被引频次】11
  • 【下载频次】64
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