© 2022 KGOU
News and Music for Oklahoma
Play Live Radio
Next Up:
Available On Air Stations

Oil And Gas Activity Likely Caused Widely Felt Western Oklahoma Earthquake, Study Suggests

Graphic showing stress change after the 5.1-magnitude earthquake that struck near Fairview in February 2016.
American Geophysical Union

Wastewater injection into clusters of high-rate disposal wells likely triggered a 5.1-magnitude earthquake that struck western Oklahoma in February 2016, new research suggests.

The earthquake near Fairview produced a large blast of seismic energy that spawned a series of widely felt aftershocks. The quake is now considered one of the largest ever linked to the oil industry practice of pumping toxic water produced during drilling into underground disposal wells, U.S. Geological Survey research geophysicist William Leck and a team of federal and university scientists write in a paper published in Geophysical Research Letters.

The Fairview event is the largest quake scientists have linked to disposal wells since the 5.7-magnitude temblor that shook in November 2011 near the small community of Prague, also in Oklahoma. Seismologists think the damaging 5.8-magnitude quakethat shook the state over the Labor Day weekend — Oklahoma’s largest, ever — was likely triggered by injection activity, too, though peer-reviewed research findings have yet to be published.

In the three years prior to the Fairview earthquake, wastewater injection in the area increased sevenfold, the scientists found. The shaking — which caused no injuries and resulted in only minor damage —  occurred a “relatively large distance” from the disposal wells, which “points to the critical role preexisting, though possibly unknown, fault structures play in inducing large events,” the scientists write.

Scientists think the practice of wastewater injection is the reason Oklahoma is now the most seismically active state in the nation.

StateImpact Oklahoma is a partnership among Oklahoma’s public radio stations and relies on contributions from readers and listeners to fulfill its mission of public service to Oklahoma and beyond. Donate online.

Joe was a founding reporter for StateImpact Oklahoma (2011-2019) covering the intersection of economic policy, energy and environment, and the residents of the state. He previously served as Managing Editor of Urban Tulsa Weekly, as the Arts & Entertainment Editor at Oklahoma Gazette and worked as a Staff Writer for The Oklahoman. Joe was a weekly arts and entertainment correspondent for KGOU from 2007-2010. He grew up in Bartlesville, Okla. and studied journalism at the University of Central Oklahoma.
More News
Support nonprofit, public service journalism you trust. Give now.