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seismology

Tettegouche State Park in Minnesota

The Midcontinent Rift could have split North America apart a billion years ago. Why didn’t it?

Technology

The rift was poised to turn the upper Midwest into oceanfront real estate — until it stalled.

Emergency workers inspect the earthquake damaged buildings in L'Aquila Italy in April, 2009.

An Italian appeals court overturns the convictions of six scientists accused of not warning people about an earthquake

Justice