Lan's hometown was hit by a strong earthquake on April 20.
4月20日,兰的家乡遭受了一场强烈的地震。
A strong earthquake has jolted the south coast of Indonesia's Java Island.
一次强烈的地震震动了印度尼西亚爪哇岛南部。
What seismologists can do is identify places where there is a high probability of a strong earthquake happening in the future.
地震学家所能做的,只是找出那些未来发生强震的可能性很大的地方。
These include hearing a roaring or sucking noise, seeing the ocean suddenly pull back or rise, or feeling a strong earthquake that lasts more than twenty seconds.
VOA: special.2011.06.07
Nuclear Regulatory Commission Chairman Gregory Jaczko also said America has a strong program in place to deal with earthquake threats.
VOA: special.2011.03.18
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