more proof that injecting fluid into earth causes earthquakes
SoCal geothermal power production causes earthquakes, study says
The geothermal power plants at Southern California’s Salton Sea don’t just produce electricity, they also trigger thousands of temblors not far from one of the West Coast’s most dangerous earthquake faults, a study says.
A study published online Thursday in the journal Science found that as production rose at the Imperial County geothermal field, so did the number of earthquakes. From 1981 through 2012, more than 10,000 earthquakes above magnitude 1.75 were recorded in the area.
“That group of earthquakes …. is connected to the production,” said Emily Brodsky, a UC Santa Cruz geophysicist and the paper’s lead author.
The largest quake during the three-decade study period was magnitude 5.1; the vast majority of quakes were small. But they are occurring about 12 miles from the southern end of the San Andreas fault, which seismologists predict will eventually rock the Southland with a devastating temblor.
Could the little earthquakes in the geothermal field trigger something bigger on the San Andreas?
“The big question at this point is what is the probability of jumping that gap and actually starting to interact with the San Andreas?” Brodsky said. “We don’t know the answer to that question.”
“It is plausible. Is it a certainty? No,” she added.
Geothermal power production started in the Salton Sea field in 1982 and includes one of the largest and hottest geothermal wells in the world. Plants extract super-heated water from thousands of feet beneath the earth’s surface and use it to produce steam that drives turbines to generate electricity. The remaining brine is then injected back into the ground.
It’s been known for decades that injecting fluids into the earth can lead to seismic activity. Previous studies have linked earthquakes to geothermal production.
http://touch.latimes.com/#section/17.../p2p-76635813/

) can't be bothered to link the actual study. Of course that doesn't matter to moon bats like boutons who thinks what he's told to think.
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