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世界上两次完全相同的地震产生了两种迥然不同的结果,你相信吗?1989年美国旧金山海湾地区发生了与苏联亚美尼亚1988年12月同为里氏6.9级的大地震。可是,苏联在这次地震中死亡人数高达25000人,该地区所有乡镇都夷为平地;而美国海湾地区地震中却仅有约55人死亡,遭受严重破坏的只不过是一段50英尺长的桥段、一条1英里长的高架公路以及少数旧公寓楼。何故?原来旧金山
Two identical earthquakes in the world produced two very different results. Do you believe that? In 1989, the Gulf of America San Francisco suffered a 6.9-magnitude earthquake with the Soviet Union in December 1988. However, the Soviet Union killed as many as 25,000 people in this earthquake. All the towns and villages in the area were razed to the ground; in the Gulf of America earthquake, only about 55 people died. It was only a 50-foot bridge that was seriously damaged. Section, a 1 mile elevated highway, and a few old apartment buildings. Why then? Original San Francisco