ZK03井水温异常与印尼8.7级地震的关系  

Relation between the water temperature anomaly from ZK03 well and Indonesia M8.7 earthquake

作　　者：邱永平[1] 

机构地区：[1]浙江省宁波地震台

出　　处：《华北地震科学》2005年第4期13-16,共4页North China Earthquake Sciences

基　　金：中国地震局95-01-02改造项目

摘　　要：分析认为该井水温出现的中、短、临异常可能与印尼8.7级地震有关。年日均值图显示,中期异常出现在震前11个月左右,表现为脉冲式向上突跳及阶跃式上升,最大异常量为日均正常上升速率的84倍;中短期异常出现在震前4个月和1个月,最大异常量为正常日均波动值的274倍;临震异常出现在震前的第9天,震前25小时达到最高值,最大异常量为正常日均波动值的2.5倍。水温异常出现的原因可能是由于地震前的长周期波通过上地幔或软流层传播,间接地导致了地下流体温度发生了微小的变化。The medium term, short term and imminent anomalies occurred in ZK03 well might be relevant to Indonesia M8.7 earthquake. The figure of daily mean value in resent year showed： the medium term anomaly with impulse jumps appeared 11 months before the event, and the maximum of anomaly was 84 times of the normal rising rate; the short term anomaly appeared 4 - 1 month before the event, and the maximum of anomaly was 274 times of normal mean fluctuation; the imminent anomaly appeared 9 days before the event, and the maximum of anomaly was 2.5 times of normal mean fluctuation. These anomalies might be due to the temperature variation of subsurface fluid that caused by transmission of long cycle waves through upper mantle or asthenosphere before the earthquake.

关 键 词：地热 异常特征 印尼地震 

分 类 号：P332.6[天文地球—水文科学]