Map Centered at 35°N, 93°W
This has just been two earthquakes on this day, Feb. 28, 2011 - in the same spot in Arkansas where we have seen an odd swarm. The swarm has been very exact in it's location, with no earthquakes outside a small area. I have mentioned this swarm of earthquakes much in this blog. This morning, a 4.7 happened, and in my opinion, this seems a bit strong for any quake caused by local gas drilling. But that is just my opinion. But because these quakes are not scattered or along a line, I tend to wave off a seismic explaination, unless of course, it's related to the New Madrid rift far to the north. Whatever is going on, the ground does want to do something, and there is obviously a lot of stresses and pressure demanding earth movement of some kind in the area.
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