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一、前兆反应 1995年10月6日6时26分,在唐山市古冶(39.8°N,118.5°E)发生了Ms5.0地震,震中在宝坻地温观测点N85°E 125km的位置(图1)。9月18日之前,宝坻地温观测点日平均变化幅度为0.0008℃。9月17日7时井孔水温为21.0171℃,9月21日14时宝坻观测点井孔水温为20.9960℃,累积下降幅度为0.0211℃,下降速率平均约为0.0004℃/h。21日15时温度回升,到25日24时,井孔水温基本恢复正常,水温恢复
I. Precursor reaction At 0626 hours on 6 October 1995, an Ms5.0 earthquake occurred at Guye (39.8 ° N, 118.5 ° E) in Tangshan City. The epicenter was at a temperature of 125 ° E and 125 ° E (N85 ° E) ). Before September 18, the average daily temperature change at Baodi ground temperature was 0.0008 ℃. At 17 o’clock on the September 17, the water temperature in the borehole was 21.0171 ℃. At 14 o’clock on the September 21, the borehole water temperature at Baodi was 20.9960 ℃, with a cumulative decrease of 0.0211 ℃ and an average decline rate of about 0.0004 ℃ / h. At 15 o’clock on the 21st the temperature rose, at 24 o’clock on the 25th, the wellbore water temperature returned to normal, the water temperature recovery