Pumping water out of the ground can trigger earthquakes miles away
Massive groundwater extraction for farming and cities can destabilize the earth's crust, shifting underground pressure enough to trigger seismic activity miles away from the original pumping site.
Extracting groundwater does more than just deplete our water supply; it fundamentally alters the stress balance of the Earth's crust. As water is removed, the 'pore pressure' in the subsurface drops, which can reduce the frictional strength of distant fault lines. In Northern California, researchers found that these hydrological shifts increased local seismic activity by up to 10 percent.
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