Tuesday, June 30, 2015

Puzzling Quake

While industrial activities can't be ruled out as a cause of Michigan's recent earthquakes, Benz said, "these quakes look tectonic," or related to the natural processes of the Earth's crust.

The culprit could even be glacial rebound — land masses pressed down by millions of tons of ice during Michigan's last glacial period about 12,000 years ago beginning to rise, Benz said.

In Southern California, where earthquakes are frequent, fault lines are well-known, and a tremendous amount of study and technology is deployed. But much less of a look has been taken at relatively earthquake-free places, like Michigan...-Latest Michigan quake has scientists puzzled

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