Just days after the USGS rated the September 3 earthquake a 5.6, they raised the rating to 5.8, ultimately making it the largest recorded earthquake in the state.
USGS says the upgrade was based on the findings of an in-depth analysis of seismic recordings.
According to the statement, USGS says “Changes in estimated magnitude for an earthquake are common in the hours-to-days following the event, as more data are analyzed in greater detail than is possible in the first minutes after the earthquake occurs.”
They went on to say that the November 2011 earthquake in Prague, Oklahoma was changed from a 5.6 to a 5.7 as well.
RELATED: EPA shuts down 17 wells in Osage Nation after Oklahoma quake | 5.6 magnitude earthquake shakes swath of Midwest from Oklahoma to Missouri | Disposal wells to shut down following earthquake, says Oklahoma Corporation Commission |