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1986年5月20日我国台湾省花莲县附近连续发生两次强震,打破了近廿年在台湾岛内无震灾的记录。两次地震有感范围很广,福建、浙江沿海普遍有感,甚至上海高层建筑上的人都有感。两次地震使花莲等几个县遭到破坏,造成人员伤亡,引起了许多地震学者的关注。 震源参数 大震发生后,台湾气象部门测定的震中在花莲县以东海中,而台湾地科所测定在花莲县以北十公里。结合宏观调查,确定其参数:
On May 20, 1986, two consecutive strong earthquakes occurred in the vicinity of Hualien County, Taiwan Province of China, breaking the record of no quake-stricken islands in Taiwan in nearly 20 years. Two earthquakes felt a wide range of Fujian, Zhejiang coastal feel generally, and even Shanghai high-rise buildings have a sense of people. Two earthquakes caused the destruction of several counties such as Hualien, causing casualties and arousing the concern of many seismologists. After the occurrence of the earthquake source parameters, the epicenter measured by Taiwan’s meteorological department was located in the East China Sea in Hualien County, while the Taiwan Branch determined that the epicenter was 10 kilometers north of Hualien County. Combined with macro survey to determine its parameters: