Scientists convinced of tie between quakes, drilling
Associated Press
LOS ANGELES
With the evidence coming in from one study after another, scientists are more certain than ever that oil and gas drilling is causing hundreds upon hundreds of earthquakes across the U.S.
So far, the quakes have been mostly small and have done little damage beyond cracking plaster, toppling bricks and rattling nerves. But seismologists warn that the shaking can dramatically increase the chances of bigger, more dangerous quakes.
Up to now, the oil and gas industry has generally argued that any such link requires further study. But the rapidly mounting evidence could bring heavier regulation down on drillers and make it more difficult for them to get projects approved.
The potential for man-made quakes “is an important and legitimate concern that must be taken very seriously by regulators and industry,” said Jason Bordoff, founding director of the Center on Global Energy Policy at Columbia University.
He said companies and states can reduce the risk by taking such steps as monitoring operations more closely, imposing tighter standards and recycling wastewater from drilling instead of injecting it underground.
On Thursday, the U.S. Geological Survey released the first comprehensive maps pinpointing more than a dozen areas in the central and eastern U.S. that have been jolted by quakes that the researchers said were triggered by drilling. The report said man-made quakes tied to industry operations have been on the rise.