A new theory may solve the mystery of why the New Madrid fault, which lies in the middle of the continent and not along a tectonic plate boundary, produces large earthquakes such as the ones that shook the eastern United States in 1811 and 1812.
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Best upcoming scoops - Environmental
- Latest Southern Ocean research shows continuing deep ocean change
- Factors behind past lemur species extinctions put surviving species in 'ecological retreat'
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