Scientists search for signs of an earthquake
By Peng Yining | China Daily | Updated: 2010-01-28 07:47
On the morning of Feb 4, 1975, residents in Haicheng were evacuated from their homes because local officials feared a large earthquake was about to strike. They were right. Nine hours later, the city in Liaoning province was rocked by a 7.3-magnitude tremor.
Scientists in the city, which has a population of 1 million, said they raised the alarm after recording a 3.1-magnitude tremor and 1,000 smaller aftershocks the previous day.
The incident is regarded as the world's first successful earthquake prediction. But was it a prediction or simply coincidence?
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