Evison(1963) put forward chemical phase transitions as generators of even shallow focus shocks . 埃文森（1963年）提出的化学相变是产生地震的原因，即使是浅源地震也是这样。
Some regions, such as the great shield areas of north america and europe, are virtually free of devastating earthquakes . 有些地区，好象北美和欧洲的大地盾区，实际上是没有破坏性地震的。
In order to express earthquake effects in a quantitative way, intensity scales were introduced as early as the 1870's . 为了以定量方式表达地震的各种效应，早在十九世纪七十年代就采用了烈度表。
These phenomena indicate that heavy rainfall is a kind of trigger for the occurrence of earthquakes which occur along the fractured zones of the active faults . 这些现象表明，大雨是发生于活动断层断裂区的那些地震的一种触发因素。
This earthquake is 10 times as strong as last one 此次地震的强度是上次的10倍。
The probability of an earthquake disturbed everybody 地震的可能使每一个人不安。
The tremor was placed at 5 . 6 on the ricther scale 地震的震级被测定为里氏5 . 6级。
Lcq3 : seismic resisting capability of buildings 立法会三题：建筑物抵御地震的能力
So far , we can ' t debar the seismal possibility 到目前为止,还不能排除地震的可能性
What was i doing when the 921 earthquake happend 921地震的时候我在做什么呢？
