一从一次震例谈起 1987年8月7日17时35分在芦台附近发生了M_8=4.2级地震。在我区双港动物观测站的动物观侧曲线上发现有短临异常显示。双港观测站的小白鼠转笼从7月底8月初起迅速增加。过去,正常活动量在100圈/日左右,但8月4日上升到496圈/日,5—6日稍有下降,7日又达453圈/日,8日达414 First, from a seismic example at 17:35 on August 7, 1987, an M_8 = magnitude 4.2 earthquake occurred near Lutai. Short-term and abnormal anomalies were found on the animal side curves of the Shungang Animal Observatory in our district. The double-walled mice cage at the Shuanggang Observatory increased rapidly from the end of July to the beginning of August. In the past, normal activity was around 100 laps / day, but rose to 496 laps / day on August 4, slightly decreased on 5-6 days, reached 453 laps / day on the 7th and reached 414 on the 8th