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介绍了198 1年11月底南京 JW-1型极微震仪鉴定会情况,回顾了地球物理所于70年代初进行的极微震观测试验情况,说明了极微仪对于检测震中距为100公里以内的本地微震的优越性,并提出唐山大震前确无前震仍然是个问题,建议在国内提倡和努力推动极微震观测工作。
This paper introduces the identification of the JW-1 very-microseismic observer in Nanjing at the end of November, 1981. The review of the microseismic observations carried out by the geophysical institute in the early 1970s shows that the micrometer has better performance in detecting epicentral distances within 100 km The superiority of local microseism and the suggestion that there is no pre-earthquake before Tangshan earthquake is still a problem. It is suggested to promote and try to promote the extremely microseismic observation in China.