EDMOND, Okla. — The Latest on a swarm of earthquakes recorded in Oklahoma Tuesday and Wednesday (all times local):
The city of Edmond says power has been restored to two electric substations after a magnitude-4.2 earthquake rattled the area.
The city announced on its Twitter page that all customers should have their electric power back. The announcement came more than an hour after the U.S. Geological Survey reported a 4.4-magnitude was detected about 4 miles east-northeast of Edmond. The USGS later revised the quake down to a magnitude 4.2.
Three lesser tremors shook the Edmond area earlier Wednesday, and two were detected in the area Tuesday night.
The fourth earthquake detected in central Oklahoma in one day has been recorded near Edmond, Oklahoma.
The U.S. Geological Survey reports a tremor registering a 4.4 magnitude was detected at 9:56 p.m. Wednesday about 4 miles (6 kilometers) east-northeast of Edmond, Oklahoma — about 15 miles (25 kilometers) northeast of Oklahoma City.
Edmond city officials said two electric substations were knocked out, darkening the northeastern part of the city and leaving about 1,900 customers without power.
Three lesser earth tremors had rattled the Edmond area earlier Wednesday, and two were detected in the area Tuesday night.
At least five small earthquakes have been recorded in central Oklahoma by the U.S. Geological Survey.
The quakes struck Tuesday night and Wednesday just east of Edmond, about 15 miles (24 kilometers) northeast of Oklahoma City. No injuries or damage are reported.
The largest quake was magnitude 3.5, recorded at 12:18 a.m. Wednesday, while a 3.3 magnitude temblor was recorded at 3:45 p.m. Wednesday.
Two magnitude 3.0 earthquakes were recorded Tuesday night and Wednesday morning and a magnitude 2.6 quake struck Wednesday.
Geologists say damage is not likely in quakes below magnitude 4.0.
Scientists have linked some oil and gas production in Oklahoma to an uptick in earthquakes, but the frequency of earthquakes had dropped recently as the state imposed restrictions on the injection of wastewater into underground disposal wells.