急求一篇英语小作业 100字左右. 题目是 what do you know about the formation of an earthquake ?

题目

急求一篇英语小作业 100字左右. 题目是 what do you know about the formation of an earthquake ?

答案

Due to the deep underground strata rupture,by the collapse of the earthquake as structural earthquake (FIG.1-1).This kind of earthquake the most times,damaging the largest,accounts for about more than 90 percent of the world earthquake.Due to volcanic action,like magmatic activity,such as gas explosion caused by earthquake known as the volcano earthquake.Only in volcanic area can occur volcanic earthquake,this kind of earthquake accounts for only 7% of the world earthquake.And so on