Wednesday, March 24, 2010

Does Geothermal Power Cause Earthquakes?

Geothermal Hot Spots: Many hot spots sit in seismically active areas. Paul Wootton

From Popular Science:

A new energy method could trigger a risky side effect.

On December 8, 2006, Markus Häring caused some 30 earthquakes -- the largest registering 3.4 on the Richter scale -- in Basel, Switzerland. Häring is not a supervillain. He's a geologist, and he had nothing but good intentions when he injected high-pressure water into rocks three miles below the surface, attempting to generate electricity through a process called enhanced geothermal. But he produced earthquakes instead, and when seismic analysis confirmed that the quakes were centered near the drilling site, city officials charged him with $9 million worth of damage to buildings.

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