Scientist: Record quake caused by oil industry was shocking — Fault lines being lubricated? Unknown how big these could get — Aftershocks may go on for years (VIDEO)

Published: March 28th, 2013 at 2:23 am ET
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Title: Oil extraction wastewater caused Oklahoma’s biggest quake
Source: NBC News
Author: Tia Ghose
Date: March 27, 2013

The largest-ever recorded quake in Oklahoma was caused by the injection of wastewater, a byproduct of oil extraction, into the ground, new research confirms.

On Nov. 6, 2011, a series of earthquakes, including a 5.6-magnitude temblor […] felt as far away as Milwaukee.

“We don’t normally feel earthquakes, it was shocking,” said study co-author Katie Keranen, a seismologist at Oklahoma University. […]

“It’s almost a lubrication, it can push the fault apart,” Keranen told LiveScience. “When you do that you lower the stress that’s holding a fault together and you can cause it to slip.” […]

“We don’t know what the maximum size of earthquakes could be that we could trigger from disposal,” Keranen said. […]

See also: [intlink id=”powerful-m5-7-quake-caused-by-oil-industry-felt-across-14-states-largest-anywhere-in-central-u-s-for-a-decade” type=”post”]{{empty}}[/intlink]

KWTV: “Aftershocks could go on for years.”

View local news coverage of the report here

Published: March 28th, 2013 at 2:23 am ET
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