他们每个月都会进行一次地震演习。

They conduct an earthquake manoeuvre once a month.

上海曾发生过一次地震。

There once occurred an earthquake in Shanghai.

没有迹象表明,将要发生一次地震.

There is no indication that we shall have an earthquake.

1703年的一次地震后，L'Aquila市中心的大部分地区都遭重建。

Much of the centre of L'Aquila had to be rebuilt after an earthquake in 1703.

中国的每一次地震都让当权者恐惧，因为他们将其看作违抗天命的后果。

That's why every single time that China has an earthquake, the political rulers were scared, because they were reading that as some kind of Mandate of Heaven.

继上周地震后，这是龙目岛第二次地震，第一次地震造成16人遇难。

This was the second earthquake to rock Lombok just in the last week. The first one killed 16 people.

最近一次地震震坍了许多房子的墙。

The recent earthquake crumbled the walls of many houses.

一开始我还好，我经历过很多次地震但这一次的地震持续时间很长而且有愈演愈烈之势。

First I was OK, I have been though a lot of earthquakes but the earthquake kept going and seemed to gain momentum.

余震会在第一次地震距离多远的地方发生?

How far away from the first earthquake can aftershocks occur?

此次海啸也引发了日本历史记录的震级最高的一次地震。

The tsunami was triggered by Japan's biggest earthquake since records began.