New hazard maps show 46 states face quake threat

04/22/2008 | Salt Lake Tribune (Utah), The

In the wake of last week's magnitude 5.2 earthquake in Illinois, the U.S Geological Survey has updated its national hazard maps to show the 46 states facing significant risk of a seismic event. A worst-case quake along Utah's 240-mile Wasatch Fault, for example, has been elevated to a powerful magnitude 7.4.

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Salt Lake Tribune (Utah), The

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