Oklahoma Geological Survey. 4/21/2015 - The OGS considers it very likely that the majority of recent earthquakes, particularly those in central and north-central Oklahoma, are triggered by the injection of produced water in disposal wells.
A 5.0-magnitude earthquake hit the U.S. state of Oklahoma on Monday with no major damage being immediately reported. According to the U.S. Geological Survey (USGS), the earthquake occurred around 0144 GMT with an epicentre located about 1.6 km west of Cushing, a city in the northern part of Oklahoma. The Cushing police confirmed that the
PAWNEE, Okla. - A magnitude 4.5 earthquake has shaken north-central Oklahoma. The earthquake occurred at 11:27 p.m. The U.S. Geological Survey reports the epicenter was near Pawnee, about 70 miles northeast of Oklahoma City. Pawnee police say that preliminary reports show no significant damage.
An earthquake rattled central Oklahoma tonight, reportedly damaging multiple buildings in Cushing, about 50 miles northeast of Oklahoma City, and was felt as far away as Arkansas, Kansas and Missouri. According to the U.S. Geological Survey, the quake hit at 7:44 p.m. The USGS initially measured the quake at 5.3 magnitude, but later revised the measure to 5.0. At least four structures sustained damage in the downtown area, including Cushing City Hall.
Rare Earthquake Warning Issued for Oklahoma - 5/5/2014 Warning from U.S. Geological Survey & Oklahoma Geological Survey, in joint statement, warned the risk of a damaging earthquake--one LARGER than magnitude 5.0--has significantly increased in central Oklahoma...