People move to a safer place after the tsunami warning was issued following four strong aftershocks, in Valparaiso, Chile, March 11, 2010. The first aftershock, measuring 7.2 on the Richter scale, lasted 45 seconds. Three less fierce quakes followed within 25 minutes. The National Emergency Office (Onemi) of Chile issued a tsunami warning from the northern region of Coquimbo to Los Lagos in the south.[Cesar Pincheira/Xinhua]
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