earthquakes-展示頁(yè)
2025-07-30 18:10本頁(yè)面
【正文】 It happened _____________________________ . It was America’s_________________________ . Many people were ______ in their________ . Buildings __________________ and there were a lot of _______ all over the city. The electricity____________________________ . Details Main Idea on the evening of Oct. 17 second strongest earthquake cars were destroyed was cut off for several days The1989 Earthquake killed Para. 23 fires Fill in form Why do earthquakes happen? Scientists explain that the outside of the earth is made of a number of different plates. At San Francisco the Pacific plate which is moving towards the northwest meets the North American plate. The Pacific Plate is moving very slowly — at centimeters a year. Sometimes these two plates stop and do not move for years. Then suddenly, they jump and an earthquake is felt. As a result of the movement of these plates, west America near the sea has always been a bad place f
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