This is an ongoing event — going on for several years now (at least two full years).
Earthquakes occurring on and off again, along the edge of the North American Craton, at depths around 3 miles… occurring at fracking operations from Colorado to Ohio. Including Oklahoma, Arkansas, North Dakota, and even Illinois.
Todays events in Oklahoma , a 3.2M and 2.5M .. across the central portion of the state , show the pressure to be ongoing (and possibly building).
- 2013-10-08 10:48:22 UTC
- 2013-10-08 05:48:22 UTC-05:00 at epicenter
- 2013-10-08 05:48:22 UTC-05:00 system time
36.586°N 98.036°W depth=5.3km (3.3mi)
- 21km (13mi) ENE of Helena, Oklahoma
- 25km (16mi) NNW of Enid, Oklahoma
- 86km (53mi) W of Ponca City, Oklahoma
- 95km (59mi) NW of Guthrie, Oklahoma
- 132km (82mi) NNW of Oklahoma City, Oklahoma
- 2013-10-08 03:24:01 UTC
- 2013-10-07 22:24:01 UTC-05:00 at epicenter
- 2013-10-07 22:24:01 UTC-05:00 system time
35.657°N 96.650°W depth=11.4km (7.1mi)
- 10km (6mi) S of Stroud, Oklahoma
- 44km (27mi) NE of Shawnee, Oklahoma
- 58km (36mi) ENE of Choctaw, Oklahoma
- 61km (38mi) SW of Sapulpa, Oklahoma
- 81km (50mi) ENE of Oklahoma City, Oklahoma
The reason I say this may be a sign of BUILDING pressure, is mainly due to the movement we saw YESTERDAY off the east coast of the United States. A 4.5M earthquake struck east of the Carolinas, in the methane deposits offshore by about 300 miles.
This is a great example to show the movement on the eastern edge of the Craton, after we have seen multiple midwest earthquakes (at fracking operations), the pressure has transferred eastward to the deformed edge of the plate , which extended a few hundred miles off shore of the continent.
Here are all my past posts on the topic of man made earthquake / induced seismicity / fracking: