Questions about Typhoon (1)

Typhoons are tropical cyclones of the categories. On the meteorology, defined by the World Meteorological Organization: Center sustained wind speed of tropical cyclones to grade 12 (that is 32.7 m/s or more) are called hurricanes, Hurricane name used in the North Atlantic and Eastern Pacific; and use synonyms of words is the Western North Pacific typhoon (Typhoon). During Taiwan and the Japan, Center sustained winds of 17.2 meters per second tropical cyclone is termed a typhoon. On informal occasions, the "Typhoon" even refers to including tropical depressions, tropical storms, severe tropical storm and typhoon, all appeared in the Western North Pacific tropical cyclones.From 1947 to 1980 ten major natural disasters worldwide, caused by Typhoon death toll at 499,000, 41% per cent of global natural disaster deaths, than the number of deaths caused by the earthquake (450,000 persons).
////////////////////////////////////////////////////////////////////////////////////////////////////////////////颱風是熱帶氣旋的一個類別。在氣象學上，按世界氣象組織定義：熱帶氣旋中心持續風速達到12級（即每秒32.7米或以上）稱為颶風,颶風的名稱使用在北大西洋及東太平洋；而北太平洋西部使用的近義字是颱風（typhoon）。在台灣、日本等地，則將中心持續風速每秒17.2米以上的熱帶氣旋皆稱為颱風。在非正式場合，「颱風」甚至泛指包括熱帶低氣壓、熱帶風暴、強烈熱帶風暴和颱風等所有在北太平洋西部出現的熱帶氣旋。從1947年至1980年全球十種主要自然災害中，由颱風造成的死亡人數為49.9萬人，佔全球自然災害死亡總人數的41%，比地震造成的死亡人數(45萬人)還多。