9/6/2013 — Arkansas Fracking Earthquake — 2.7M on the flank of large injection well operation

Back once again to Arkansas.  Another injection well induced earthquake…. a repeat, ongoing problem it would seem.

(click to view full size)

arkansas fracking earthquake september 5 2013

Earthquake statistics:

http://earthquake.usgs.gov/earthquakes/eventpage/nm090513b#summary

Event Time

  1. 2013-09-05 21:57:06 UTC
  2. 2013-09-05 16:57:06 UTC-05:00 at epicenter
  3. 2013-09-05 16:57:06 UTC-05:00 system time

Location

35.728°N 92.718°W depth=4.3km (2.7mi)

Nearby Cities

  1. 21km (13mi) SSW of Marshall, Arkansas
  2. 62km (39mi) NE of Russellville, Arkansas
  3. 65km (40mi) SSE of Harrison, Arkansas
  4. 73km (45mi) SSW of Mountain Home, Arkansas
  5. 115km (71mi) NNW of Little Rock, Arkansas

______________
Some readers may recall the governor of Arkansas put a moratorium on new frack wells in 2011 (after the large 5.0M earthquake which struck the injection well operation in central AR).

Now it appears they’re back up and running.  This past winter (2012 going into 2013) Arkansas experienced a series of additional “frack quakes” as well as EXPLODING COMPRESSOR STATIONS AND PIPELINES.

This current 2.7M earthquake occurred inside an operation we haven’t seem much movement around in the past.   Previous areas like Greenbrier / Beebe have had recent movement as well, however this Earthquake occurred inside operations to the North.

The Arkansas earthquakes, including movement in adjacent areas such as Oklahoma, Louisiana, and Texas — indicate heavy stress upon the edge of the North American Craton (plate).  All the areas weakened by man made injection / drilling will continue to experience ‘unexpected’ seismic activity UNTIL the unrest in the West Pacific dies down.

The Pacific plate unrest could carry on for years to come, which means drilling points across the craton edge will continue to be in flux, much like perforated edges on a thick piece of cardboard.. they will tear at the weak points first.

Diagram of Shale Gas / Fracking plays in the US vs. North American craton :
craton shale plays mashup fracking

2 thoughts on “9/6/2013 — Arkansas Fracking Earthquake — 2.7M on the flank of large injection well operation

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