A flowchart from ODOT's new manual on inspecting bridges after earthquakes.
The Oklahoma Department of Transportation has changed its post-earthquake bridge-inspection plan after a year-long study showed no structural damage from seismic activity.
Under the new plan, which went into effect April 1, ODOT will only inspect bridges after magnitude 4.7 or greater quakes. Regions where bridge inspections are required will expand as earthquake intensity increases: Continue Reading
The U.S. Geological Survey on Monday released for the first time maps that forecast regions that could experience damage from human-triggered earthquakes. Oklahoma has the highest risk for potential shaking, researchers say. Continue Reading
Oklahoma oil and gas authorities are expanding regulations on disposal wells in earthquake-prone regions of the state. The orders, known as directives, were issued this week and broaden restrictions issued nearly four months ago. Continue Reading
State environmental regulators shuttered a landfill near Tecumseh in May “after years of ongoing problems” that included multiple fires, dead animals and pools of standing blood, The Oklahoman‘s Brianna Bailey reports. Continue Reading
A Devon Energy disposal well near Stillwater, Okla.
The Oklahoma Corporation Commission in March ordered the operators of nearly 350 disposal wells to prove their operations weren’t allowing waste fluid to be pumped into a rock formation known to produce earthquakes.
The Corporation Commission has not provided comprehensive records or data related to the operators’ responses to the March directives despite multiple requests by StateImpact. Today, the commission issued a statement that provides a snapshot of the industry’s response to the directives:
The offices of Gov. Mary Fallin and the Secretary of Energy and Environment debuted a new web portal, earthquakes.ok.gov, to serve as a "one-stop-shop" for quake research and regulatory news.
Disposal wells used by the oil and gas industry are ‘very likely’ responsible for the recent surge of earthquakes in Oklahoma, the state seismologist at the Oklahoma Geological Survey said Tuesday.
“Based on observed seismicity rates and geographical trends following major oil and gas plays with large amounts of produced water, the rates and trends in seismicity are very unlikely to represent a naturally occurring process,” state seismologist Austin Holland and agency interim director Richard D. Andrews writes in a joint statement. Continue Reading
Joe Wertz / StateImpact Oklahoma
An American Energy Woodford well near Perkins, Okla.
As earthquakes continue to surge in Oklahoma and seismologists warn of more frequent and more damaging shaking, the state’s oil and gas regulator is issuing new orders to companies operating wells in seismically active regions of the state. Continue Reading
The Oklahoma Corporation Commission will consider rules for the wind industry that outline proper procedures for landowner notification and turbine decommissioning, according to an order singed Tuesday. Continue Reading
Joe Wertz / StateImpact Oklahoma permalink
Pedestal Oil first proposed drilling at Lake Hefner in 2011, but the plan met stiff opposition from several groups.