... 汤加的火山(Volcano in Tonga area)。 阿拉斯加的火山(Volcano in Alaska)。 哥斯达黎加阿雷纳火山(Arenal Volcano, Costa Rica)。 ...
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由于火山活动，阿拉斯加也就有了大量的地震活动。
Because of volcanic activity, Alaska also has a lot of earthquakes.
据阿拉斯加火山观察记录，每年有五千多次地震记录，绝大多数的地震活动都不很强烈，但阿拉斯加拥有迄今以来最大的一些地震记录。
The Alaska Volcano Observatory records five thousand a year. Most of the shaking is not very strong, but Alaska has had some of the biggest quakes ever recorded.
阿拉斯加的地热资源具有较大的发展前景，因为该州位于环太平洋的火山带上。
Far more promising is geothermal energy, since Alaska lies on the "ring of fire", a string of volcanoes that encircles the Pacific Ocean.
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