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地震跟刮风下雨一样是一种很普通的自然现象.地球上天天都有地震发生,每年约500万次,对人类造成破坏的有1000次左右.据统计,多数强烈地震发生前都出现地下水、动物行为、气象、地壳形变等宏观异常现象,由于这些宏观异常分布广、数量多、出现时间集中,易被发现,积极采取行动,可大大减少伤亡和损失.例如1976年7月28日唐山大地震前一天的下午,唐山市的张玉艺感到天气特别闷热,并发现水库里两个泉眼冒出的水特别混.他担心有地震,当晚未敢睡觉,并把门窗敞开,防备万一.次日凌晨3点多,看到电灯摇晃时,没有惊慌失措,迅速带着家人撤离房屋.这个实例告诉我们,震前的知识准备至关重要.
Earthquakes are a very common natural phenomenon, like windy rains, with earthquakes occurring every day about 5 million times a year and about 1,000 times causing damage to humans. According to statistics, most of the strong earthquakes occurred before the earthquake Such as macro-anomalies such as groundwater, animal behavior, meteorology and deformation of the crust, etc. These macroscopic anomalies can be greatly reduced in casualties and losses due to their wide distribution, large number of occurrences, concentrated appearance of time, easy detection and active actions. For example, on July 28, 1976 The afternoon before the Tangshan earthquake, Zhang Yuyi from Tangshan City felt the weather was particularly hot and he found that the water from the two springs in the reservoir was particularly mixed. He was afraid of an earthquake and dared not sleep in that night and opened the doors and windows in case of danger. The next day at 3 am, saw the lights shaking, did not panic, quickly with their families evacuated from the house.This example tells us that the pre-earthquake knowledge preparation is crucial.