【Earth&Sky】海啸不可测但可寻迹象_英语听力练习mp3下载-自然-沪江听力酷

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【Earth&Sky】海啸不可测但可寻迹象

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Oceanographer Eddie Bernard said progress has been made in understanding tsunamis since the one that struck southeast Asia in 2004. But, he said, the science of predicting earthquakes, the [---1---] that causes 90% of tsunamis, is still unreliable.

Eddie Bernard: It's easy for seismologists to say that an earthquake could occur in the next day or 200 years, but that's not really useful in planing a society.

[---2---]

Eddie Bernard: If you think of throwing a rock on a pond, that's a sudden impact [---3---], and you see waves radiate out from it.

He said the same thing can happen on a planetary scale. An earthquake in the ocean — like the rock in a pond — can create large waves that [---4---] when they hit the shore. Bernard explained the problem for people who live along coastlines.

Eddie Bernard: No one can tell them exactly when it's going to happen. It will be abrupt, it will be sudden. But if you can interpret the physical signature of the tsunami, you can [---5---].

He said to look for three signs. If you feel the earth shake, see the water withdraw from the coast, or hear a loud roar from the ocean, get off the beach. Run inland, preferably uphill.

For today that's our show. I'm Deborah Byrd for EarthSky, a clear voice for science. We're at EarthSky.org.

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