读者可以在本书中了解地震是如何发生的、发生地震的原因，以及科学家该采取何种措施避免更多的人员伤亡。
Readers learn how and why earthquakes occur, and what scientists can do to prevent casualties. The expansive back matter includes a list of sources to discover more about these fearsome catastrophes.
接下来，我想找到地震发生在哪里，以及如何快速计算出在我的研究范围内记录地震次数最多的是哪个区域。
Next, I want to find out where earthquakes are occurring, and somehow quickly measure which location logs the most earthquakes in my date range.
地震发生前是没有征兆的，因此，从现在就开始进行准备相当重要。这样一来，你才会知道灾难发生时该做什么，该如何应对，如何进行有意义的自我保护。
Because earthquakes occur without warning, it's important to take steps now to prepare, so that you know what you can do and how to respond - constructive, protective action is possible.
我们已经确切地指出了断层所在，也告诉他们弹性能量建立的是如何的快，而且是立马告诉了他们，如果事情真的发生，它将造成7.2级的地震甚至更大的灾难。
We've told them exactly where the fault is. We've told them how fast it was building up elastic energy, and we've told.
地震是地质运动的结果，不管天气如何，一年四季无论何时都有可能发生地震。
They are the result of geologic processes within the earth and can happen in any weather and at any time during the year.
地震是地质运动的结果，不管天气如何，一年四季无论何时都有可能发生地震。
They are the result of geologic processes within the earth and can happen in any weather and at any time during the year.
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