Earthquakes are something that most people fear. There are some places that have【71】or no earthquakes. Most places in the world, 【72】, have them regularly. Some places, 【73】Iran and Guatemala have them frequently. Countries that have a lot of earthquakes are usually quite【74】.The earthquake that the people most【75】about in the United Stated was the one happening in San Francisco in 1906. Over 500 people died【76】it. The strongest one in North America was in 1964. It happened in Alaska. Strong earthquakes are not always the ones that kill【77】. In 1755 , one of the strongest earthquakes ever【78】happened in Portugal. Around 20, 000 people died. In 1923 , a very powerful earthquake【79】the Tokyo-Yokohama area of Japan. A hundred and forty thousand people died. Most of them died in fires which【80】the earthquake. One of the【81】earthquakes ever was in China in 1976. It killed【82】people. The most destructive (破坏 性的) earthquake ever reported was also in China. 400, 000 people were killed or【83】in this quake, which happened in 1556. Earthquakes are【84】which people fear. Floods and tidal waves also cause people to be【85】, as【86】like typhoons and cyclones(飓风) . Sometimes these things cause lots of deaths. In 1970, a cyclone and tidal wave killed over 200, 000 in Pakistan. These kinds of things make people afraid and they are very dangerous. But they probably do not worry people【87】earthquakes do, especially in these modern times. The reason is【88】we often know they are coming, because we have some【89】. Some day we may be able to know an earthquake is coming. So far, however, there is no sure way to【90】an earthquake. When one comes, it is a surprise. People cannot prepare for it. (71)