1.(大地震前的)预震
1.a slight tremor or minor earthquake, often one of many and usually preceding a larger earthquake or volcanic eruption
1.Zipingpu has such a system. A reservoir-triggered earthquake should have more foreshocks than a natural earthquake.
水库诱发的地震应该比自然发生的地震有更多前震。
2.Apparently, by this time, reports of damage caused by the foreshocks had begun to trickle in.
显然，此时，关于前震造成的破坏的报告正在陆续报告上来。
3.Be aware that some earthquakes are actually foreshocks and a larger earthquake might occur.
要注意一些地震实际上是前震，之后可能会发生更大的地震。
4.No one has been able to identify which earthquakes are foreshocks.
没有人能够识别哪些是地震，哪些是前震。
5.Even in areas where foreshocks are fairly common, there is no way of distinguishing a foreshock from an independent earthquake.
即使是在前震相当普遍的地区，也无法将前震与独立地震区分开来。
6.Although the five foreshocks differed from each other in total magnitude, their waveforms were remarkably similar.
尽管这五次前震震级不同，然而它们的波形却显著相似。
7.Foreshocks are earthquakes which precede larger earthquakes in the same location.
前震是更大强度地震发生之前在同一位置发生的地震。
8.Last fall, a paper in Geology and Seismology reported that beforethe Wenchuan earthquake, there were many small foreshocks aroundthe dam.
去年秋天发表在GeologyandSeismology的一篇论文报道了汶川地震前水坝周围确实有许多微小的前震。
9.The earthquake was preceded by foreshocks, including a 7. 2 magnitude earthquake that occurred two days earlier, about 25 miles away.
这次地震已有前震，包括两天前在距此25英里远处发生的一次7.2级地震。
10.What we can do is raise building standards and improve monitoring of foreshocks.
我们能做的就是提高建筑标准，改进地震前震的监测技术。