MAP
4.0 2011/02/18 04:59:49 35.251 -92.409 5.0 ARKANSAS
This 4.0 is the highest nagbutyde but there have been many more recent eq in this area--possibly related to gas exploration or just a natural swarm.
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Ark. cities feel unexplained surge in earthquakes http://www.msnbc.msn.com/id/41638358/ns/us_news/. . . . Several small earthquakes . . . have rattled . . . north-central Arkansas city of Greenbrier and nearby Guy this week. The U.S. Geological Service has reported 29 in the area since Sunday, and 700 quakes have hit the region in the past six months.