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Ohio Utica Shale

All 12 Youngstown quakes likely at the same site

By Bob Downing Published: February 12, 2012

Youngstown Vindicator reporter Karl Henkel reported last week that all 12 Mahoning County earthquakes probably had the same epicenter, contrary to original seismic data.

Won-Young Kin of Columbia University's Lamont-Doherty Cooperative Seismic Network said it is likely that all 12 earthquakes were centered near a brine injection well in Youngstown Township.

There was not enough seismic data previously to pin down the epicenters. The original data pinned the epicenter to within  a 3-mile radius. The new data tightens that location and puts the quakes closer to the now-closed injection well.

The Ohio Department of Natural Resources in December asked Columbia University for help. The earthquakes remain under state investigation.

Mahoning County has been rocked by a dozen earthquakes since last March. The biggest was a 4.0-magnitude quake on Dec. 31.

The state has temporarily closed the injection well owned by Youngstown's D&L Energy Inc. Five other nearby injection wells also remain closed.

Injection wells are used to dispose of briny waste from drilling natural gas and oil wells. Ohio has 176 other ijection wells.




See the most recent drilling report and an injection wells map From
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Utica and Marcellus shale web sites

Ohio Department of Natural Resources' Division of Oil and Gas Resources Management State agency Web site.

ODNR Division of Oil and Gas Resources Management. State drilling permits. List is updated weekly.

ODNR Division of Geological Survey.

Ohio Environmental Protection Agency.

Ohio State University Extension.

Ohio Farm Bureau.

Ohio Oil and Gas Association, a Granville-based group that represents 1,500 Ohio energy-related companies.

Ohio Oil & Gas Energy Education Program.

Energy In Depth, a trade group.

Marcellus and Utica Shale Resource Center by Ohio law firm Bricker & Eckler.

Utica Shale, a compilation of Utica shale activities.

Landman Report Card, a site that looks at companies involved in gas and oil leases.FracFocus, a compilation of chemicals used in fracking individual wells as reported voluntarily by some drillers.

Chesapeake Energy Corp,the Oklahoma-based firm is the No. 1 driller in Ohio.

Rig Count Interactive Map by Baker Hughes, an energy services company.

Shale Sheet Fracking, a Youngstown Vindicator blog.

National Geographic's The Great Shale Rush.

The Ohio Environmental Council, a statewide eco-group based in Columbus.

Buckeye Forest Council.

Earthjustice, a national eco-group.

Stop Fracking Ohio.

People's Oil and Gas Collaborative-Ohio, a grass-roots group in Northeast Ohio.

Concerned Citizens of Medina County, a grass-roots group.

No Frack Ohio, a Columbus-based grass-roots group.

Fracking: Gas Drilling's Environmental Threat by ProPublica, an online journalism site.

Penn State Marcellus Center.

Pipeline, blog from Pittsburgh Post-Gazette on Marcellus shale drilling.

Allegheny Front, environmental public radio for Western Pennsylvania.