我国是多地震国家,每个省区都曾发生过5级以上地震,历史上有记载的等于或大于8级的大地震多达23次,其中1900年以来发生的就有9次。 1976年唐山7.8级大地震给我国人民生命财产造成了巨大损失,其惨痛的情景至今人们记忆犹新。这次地震破坏特别严重的原因何在呢?一方面由于唐山地震是发生在城市区;另一方面还由于唐山市位于平原 China is a country with many earthquakes and there have been more than 5 earthquakes in every province and province. There have been as many as 23 earthquakes recorded in the history of magnitude 8 or greater, of which 9 occurred since 1900. The great earthquake of magnitude 7.8 in Tangshan in 1976 caused tremendous losses to the lives and property of our people and its tragic scene has still been remembered. What is the reason for the particularly serious earthquake damage? On the one hand, the Tangshan earthquake occurred in the urban area; on the other hand, Tangshan City was also located in the plain