7/28/2013 — Oklahoma Fracking Unrest — Multiple Earthquakes across the state

Over the past 7 days Oklahoma has seen multiple earthquakes across the South, Central, and North part of the state.

All at fracking / injection well operations:

Southern Oklahoma 2.8M earthquake — July 28, 2013

oklahoma 2.8m earthquake fracking july 28 2013


Event Time

  1. 2013-07-28 01:04:49 UTC
  2. 2013-07-27 20:04:49 UTC-05:00 at epicenter
  3. 2013-07-27 20:04:49 UTC-05:00 system time


35.059°N 97.895°W depth=4.8km (3.0mi)

Nearby Cities

  1. 3km (2mi) E of Chickasha, Oklahoma
  2. 39km (24mi) SSW of Mustang, Oklahoma
  3. 45km (28mi) WSW of Norman, Oklahoma
  4. 48km (30mi) SW of Moore, Oklahoma
  5. 56km (35mi) SW of Oklahoma City, Oklahoma


Northern Oklahoma 3.1M earthquake — July 27, 2013

fracking oklahoma july 27 2013 earthquake


Event Time

  1. 2013-07-27 20:23:41 UTC
  2. 2013-07-27 15:23:41 UTC-05:00 at epicenter
  3. 2013-07-27 15:23:41 UTC-05:00 system time


36.591°N 97.226°W depth=5.3km (3.3mi)

Nearby Cities

  1. 12km (7mi) SE of Tonkawa, Oklahoma
  2. 17km (11mi) SW of Ponca City, Oklahoma
  3. 54km (34mi) NNW of Stillwater, Oklahoma
  4. 54km (34mi) SSW of Arkansas City, Kansas
  5. 127km (79mi) NNE of Oklahoma City, Oklahoma


Central Oklahoma 3.2M earthquake  — July 24, 2013

oklahoma fracking july 24 2013 earthquake


Event Time

  1. 2013-07-24 11:52:05 UTC
  2. 2013-07-24 06:52:05 UTC-05:00 at epicenter
  3. 2013-07-24 06:52:05 UTC-05:00 system time


35.535°N 96.518°W depth=5.0km (3.1mi)

Nearby Cities

  1. 5km (3mi) NW of Boley, Oklahoma
  2. 43km (27mi) ENE of Shawnee, Oklahoma
  3. 51km (32mi) W of Okmulgee, Oklahoma
  4. 63km (39mi) SW of Sapulpa, Oklahoma
  5. 90km (56mi) E of Oklahoma City, Oklahoma



The ongoing movement in Oklahoma, Arkansas, Colorado, New Mexico, and Texas is being primarily caused by injection wells along with hydrofracture (frack) well operations.

See all my past posts on “fracking”, as well as the other oil drilling / natural gas related earthquake activity here:


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