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Two small quakes rumble Greenbrier

Posted: October 15, 2009 - 10:33pm

Two small earthquakes struck the Greenbrier area about 12 hours apart Thursday. 

The first earthquake, which occurred at 1:55 a.m., was measured at 2.8 on the Richter scale by the U.S. Geological Survey. 

The second earthquake, which occurred at 1:53 p.m., was measured at 2.7. 

Veronica Villalobos-Pogue, earthquake program manager/natural hazards planner, at the Arkansas Department of Emergency Management, said ADEM is monitoring the earthquake activity along with the Arkansas Geological Survey. 

“They (Arkansas Geological Survey) are working closely with the Center for Earthquake Research and Information (CERI) and the UALR-Arkansas Center for Earthquake Education and Technology Transfer to better understand the source of these small tremors,” Villalobos-Pogue said. “There is no scientific evidence to connect these recent earthquakes with the New Madrid seismic zone of northeast Arkansas, where the earthquake threat is well known.”

The first earthquake was described as having Level 1 intensity meaning no shaking was felt. The second quake had a Level 2 intensity meaning weak shaking was felt.

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markfromark
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markfromark 10/16/09 - 08:05 am
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I wonder what the odds are....

...that these quakes are somehow related to all the gas well drilling/frac'ing that has been going on the past 2-3 years? And if so, is this preliminary to more/bigger quakes? Just asking the question....don't know the answer.

kbailey25
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kbailey25 10/16/09 - 08:05 am
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Frac Drilling = Earthquakes?

Here's an article from Arkansas Business with the headline: Chesapeake Closes Disposal Wells Linked to Texas Earthquakes

" Chesapeake Energy Corp. has acknowledged the possibility that fluid disposal wells drilled in the Barnett Shale Play, a natural gas deposit near Fort Worth, Texas, may have contributed to recent earthquakes in the region, according to a Bloomberg news service report."

http://www.arkansasbusiness.com/article.aspx?aid=116650.54928.128779

Also....the EPA has found a direct link between hydraulic fracturing of gas wells and water contamination. Don't think this will happen here? It already is. Oh how lovely greed is.

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