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America’s hidden fault produces 200 earthquakes a year - the next major rupture could shake 8 states

The New Madrid Seismic Zone produced earthquakes so powerful in 1811-1812 that shaking traveled more than 1,000 miles and ...
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The New Madrid fault could shake a quarter of the country

The most powerful earthquakes in the recorded history of the eastern United States did not strike California or Alaska. They struck the middle of the continent, along a buried fault system centered ...