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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 .

【视听版科学小组荣誉出品】
disturbance He offered a way to think of the relationship between an earthquake and a tsunami. on the surface amplify save your life
bance [disˈtə:bəns] n.打扰, 扰乱You can work in here without any disturbance.在这儿你可不受任何干扰地工作。 骚乱, 纷乱There's a violent disturbance in inner city areas.市中心发生了激烈的骚乱。 困扰He is suffering an emotional disturbance.他的情绪受到了困扰。 2. He offered a way to think of the relationship between an earthquake and a tsunami.他提议这样思考地震与海啸之间的关系。 3. on the surface在表面上 4. amplify [ˈæmplifai]---> y the earthquake which is mentioned before vt.放大, 扩大The new manager wants to amplify the company.新经理想要扩大公司。 增强They amplified their sound.他们提高了嗓门。 vt. & vi.详述He amplified the whole course of the incident.他详述了事件的全过程。 5. save your life自救 【视听版科学小组荣誉出品】 以上仅供参考,欢迎大家参与讨论~