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。
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.
出处
《地震地磁观测与研究》
1994年第3期9-14,共6页
Seismological and Geomagnetic Observation and Research
关键词
地热异常
地震
地震前兆
对应关系
geothermal anomaly,earthquakes,Beijing Observatory
