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Magnitude-4 earthquake shakes central Oklahoma

A 4-magnitude earthquake Monday was the fifth 4.0-magnitude or higher earthquake measured in Oklahoma since March 30, according to the U.S. Geological Survey.
FROM STAFF AND WIRE REPORTS Modified: April 7, 2014 at 5:09 pm •  Published: April 7, 2014
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— A 4-magnitude earthquake shook central Oklahoma on Monday, the U.S. Geological Survey reported.

The earthquake hit just after 11 a.m. with an epicenter three miles south-southwest of Langston and eight miles east of Guthrie. Social media was abuzz after the quake, with reports of shaking in both the Oklahoma City and Tulsa metro areas.

Earthquakes have become increasingly common in Oklahoma in the past few years. Monday’s earthquake had a preliminary depth of three miles, said Austin Holland, a seismologist with the Oklahoma Geological Survey. The quake was felt widely through the central part of the state, including in Oklahoma City, where Mayor Mick Cornett asked via Twitter who felt the quake.

The Oklahoma Geological Survey reported the earthquake had a preliminary magnitude of 4.3. The U.S. Geological Survey, however, later reported a magnitude of 4. Quake magnitudes are often revised after data is reviewed.

Oklahoma has had 133 quakes of magnitude 2.5 or greater in the last 30 days. Geologists say earthquakes in the 2.5- to 3-magnitude range are generally the smallest felt by humans. Damage is not likely in earthquakes below magnitude 4. Monday’s quake was the fifth 4-magnitude or higher earthquake measured in Oklahoma since March 30, according to the Geological Survey.

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