4.3 Earthquake Hits Arkansas This Morning.
According to the United States Geological Survey, around 60 small-moderate earthquakes have hit Arkansas since Feb. 15, 2011, most large enough to be felt.
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The most recent a magnitude 4.3 earthquake hit this morning outside of Little Rock.
“These earthquake swarms are not that unusual for the region,” said Harley Benz, scientist in charge at the U.S. Geological Survey National Earthquake Information Center said in a USGS press release. “Central Arkansas has a history of earthquake activity with a swarm of thousands of earthquakes smaller than magnitude 4.5 in the early 1980s and another swarm in 2001, known as the Enola earthquake swarms.”
The USGS stated that the earthquake swarm may continue and that it’s likely related to similar ongoing activity involving hundreds of small earthquakes in nearby Guy, Ark., that has been going on since August 2010.
Interestingly, scientists do not know why swarms start, stop, or how to predict how long they will last but USGS scientists along with the Center for Earthquake Research and Information at the University of Memphis and the Arkansas Geological Survey will monitor the situation and investigate if the earthquakes are caused by human activities or occur naturally.
Source- USGS
