一、地震 20世纪死亡万人以上的大震27次,中国占6次。二、水旱灾中国一般年景水旱灾造成的损失占全部自然灾害的60％以上。三、风灾 20世纪死亡最多的是1970年11月12日的孟加拉国台风,死难3万人。四、火山喷发 20世纪已有10多万人死于此灾。公元前1470年希腊桑托林岛火山爆发伤亡最重,毁灭了克里特岛的一切。 First, the earthquake killed 20 people in the 20th century, the earthquake hit 27 times, China accounted for 6 times. Second, floods and droughts China’s general annual water and drought losses caused by more than 60% of all natural disasters. Third, the largest number of deaths in the 20th century in the typhoon was Bangladesh’s typhoon on November 12, 1970, killing 30,000 people. Fourth, volcanic eruptions Tens of thousands of people died in the 20th century. In 1470 BC, the volcano in Santorini, Greece, had the highest number of casualties and destroyed all of Crete.