前言地震是一种自然现象。地震前出现宏观异常,我国历史早有记载,当时就有利用动物行为异常的防震实例。但在旧中国,长期的封建统治和帝国主义的侵略,阻碍了科学技术的发展,劳动人民的智慧和经验未能得到科学的总结和运用。解放后,在毛主席革命路线指引 Foreword Earthquakes are a natural phenomenon. Before the earthquake there was a macro abnormality, which has long been recorded in our history. At that time, there was an example of using the earthquake-proofing anomaly of an animal. However, in old China, long-term feudal rule and imperialist aggression hindered the development of science and technology, and the wisdom and experience of the working people failed to be scientifically summarized and used. After the liberation, guide the revolutionary line of Chairman Mao