FILE - In this March 11, 2011 file photo, boats collide with one another after a Tsunami surge of water swept through a boat basin in Crescent City, Calif. A new report released Wednesday, Sept. 4,

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FILE - In this March 11, 2011 file photo, boats collide with one another after a Tsunami surge of water swept through a boat basin in Crescent City, Calif. A new report released Wednesday, Sept. 4, 2013 found that a hypothetical mega-earthquake off the Alaska coast would swamp Los Angeles’ port complex and cause widespread statewide economic loss. The scenario was released by the U.S. Geological Survey and others to help emergency planners prepare for a rare but possible event. (AP Photo/Bryant Anderson) less 

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Associated Press
Wed, Sep 4, 2013 8:48 PM EDT