3到5级被称为弱震或微震；5到7级称为中强震；7到8级被称为大地震；8级及以上被称为特大、超强地震。
A quake measuring 3 to 5 is considered minor or light; 5 to 7 is moderate to strong; 7 to 8 is major; and 8 or more is great.
数百万人受到此次9.0级特大地震和海啸的影响，大约四十万人无家可归。
Millions of people have been affected by the 9.0-magnitude quake and tsunami; about 400,000 people are homeless.
1975年2月4日，在中国东北辽宁省的海城，一个约有十万居民的镇，发生了7.3级的特大地震。
On February 4, 1975, Haicheng, a town with about 100,000 inhabitants in the Liaoning Province of northeast China, was struck by a 7.3 magnitude earthquake.
同时指出8.1级特大地震的特殊性和预测预报的困难性。
Finally, the particularity of great earthquake with M8.1 and difficulty of earthquake prediction are showed.
同时指出8.1级特大地震的特殊性和预测预报的困难性。
Finally, the particularity of great earthquake with M8.1 and difficulty of earthquake prediction are showed.
应用推荐