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The previous record was a 5.5 magnitude earthquake that struck near the town of El Reno in 1952. [6] The quake's epicenter was approximately 44 miles (71 km) east-northeast of Oklahoma City, near the town of Sparks and was felt in the neighboring states of Texas, Arkansas, Kansas and Missouri and even as far away as Tennessee and Wisconsin. [7]
The Oklahoma earthquake swarms are an ongoing series of human activity-induced earthquakes affecting central Oklahoma, southern Kansas, northern Texas since 2009. [6] [7] [8] Beginning in 2009, the frequency of earthquakes in the U.S. state of Oklahoma rapidly increased from an average of fewer than two 3.0+ magnitude earthquakes per year since 1978 [9] to hundreds each year in the 2014–17 ...
In Oklahoma, the number of earthquakes in the last decade with a magnitude greater than 2.7 dropped from nearly 2,000 in 2015 to less than 40 last year, according to Oklahoma Geological Survey data.
On November 5, 2011, a 5.7-magnitude earthquake occurred near Sparks. At the time, it was the largest earthquake in Oklahoma's history. [5] [6] This record lasted for less than five years; a larger, 5.8-magnitude earthquake broke the record on September 3, 2016. [7] [8]
Until recently, earthquakes in Oklahoma were few and far between. In 2010, the state experienced just 41 tremors. By comparison, each year the southern California area alone has about 10,000 ...
The epicenter of Friday's quake nearly matched that of a 5.7 quake in 2011, and Oklahoma's strongest recorded earthquake happened 60 miles to the north in Pawnee with a magnitude of 5.8 in 2016.
The following is a list of historical earthquakes with epicenters located within the boundaries of Oklahoma. Only earthquakes of greater than or equal to magnitude 4.5 are included. Information pertaining to time, magnitude, epicenter, and depth is retrieved from the United States Geological Survey or, when USGS information is unavailable, the ...
A 5.1 magnitude earthquake shook central Oklahoma late Friday night and was felt over a 200-mile radius from Kansas to Texas and Arkansas, a scientist with the U.S. Geological Survey said.