Quote:Oklahoma is within the stable interior of the United States. Except for the Meers Fault, the state has had almost no significant tectonic activity since the Pennsylvanian and Permian periods of geologic time (325 to 245 million years ago).


From your own source. Saying they are prone to Earthquakes is like saying the Jaguars are prone to winning because they won 2 games over a six week stretch. Go to rehab. You tore something.

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Approximately fifty minor earthquakes occur in Oklahoma each year, but only an average of one to two are reported felt.

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In 1977 a statewide network of seismograph stations was installed to improve earthquake detection and location. More than 1,550 additional earthquakes occurred in Oklahoma from 1977 through 2002.
Typical Oklahoma earthquake magnitude values range from 1.8 to 2.5, and focal depths are generally shallow (less than three miles). Earthquakes have occurred in seventy-three of Oklahoma's seventy-seven counties
. Only Washington, Nowata, Craig, and Adair counties have had no known earthquakes.