Sharp increase in central Oklahoma seismicity since 2008 induced by massive wastewater injection

  title={Sharp increase in central Oklahoma seismicity since 2008 induced by massive wastewater injection},
  author={Katie M. Keranen and Matthew Weingarten and Geoffrey A. Abers and Barbara A. Bekins and Shemin Ge},
  pages={448 - 451}
Wastewater disposal linked to earthquakes The number of earthquakes is increasing in regions with active unconventional oil and gas wells, where water pumped at high pressure breaks open rock containing natural gas, leaving behind wastewater in need of disposing. Keranen et al. show that the steep rise in earthquakes in Oklahoma, USA, is likely caused by fluid migration from wastewater disposal wells. Twenty percent of the earthquakes in the central United States could be attributed to just… 

Hydraulic Fracturing and Seismicity in the Western Canada Sedimentary Basin

The development of most unconventional oil and gas resources relies upon subsurface injection of very large volumes of fluids, which can induce earthquakes by activating slip on a nearby fault.

Widespread deep seismicity in the Delaware Basin, Texas, is mainly driven by shallow wastewater injection

It is shown that the widespread deep seismicity is mainly driven by shallow wastewater injection through the transmission of poroelastic stresses assuming that unfractured shales are hydraulic barriers over decadal time scales, with impacts on seismicity that are preconditioned by regional tectonics.

Oklahoma’s recent earthquakes and saltwater disposal

In three study areas that encompass the vast majority of the recent seismicity, it is shown that the increases in seismicity follow 5- to 10-fold increases in the rates of saltwater disposal.

High-rate injection is associated with the increase in U.S. mid-continent seismicity

It is found that the entire increase in earthquake rate is associated with fluid injection wells, and high-rate injection wells are much more likely to be associated with earthquakes than lower-rate wells.

High density oilfield wastewater disposal causes deeper, stronger, and more persistent earthquakes

It is shown that high-density oilfield wastewater may sink deeper in the Earth’s crust than previously considered possible, thus increasing fluid pressure and inducing earthquakes for years after injection rates decline.

Earthquakes Induced by Hydraulic Fracturing Are Pervasive in Oklahoma

Wastewater disposal is generally accepted to be the primary cause of the increased seismicity rate in Oklahoma within the past decade, but no statewide analysis has investigated the contribution of

Myths and Facts on Wastewater Injection, Hydraulic Fracturing, Enhanced Oil Recovery, and Induced Seismicity

The central United States has undergone a dramatic increase in seismicity over the past 6 years (Fig. 1), rising from an average of 24 M≥3 earthquakes per year in the years 1973–2008 to an average of

A Century of Induced Earthquakes in Oklahoma

Seismicity rates have increased sharply since 2009 in the central and eastern United States, with especially high rates of activity in the state of Oklahoma. Growing evidence indicates that many of

Oklahoma experiences largest earthquake during ongoing regional wastewater injection hazard mitigation efforts

The 3 September 2016, Mw 5.8 Pawnee earthquake was the largest recorded earthquake in the state of Oklahoma. Seismic and geodetic observations of the Pawnee sequence, including precise hypocenter

Characterizing and Responding to Seismic Risk Associated with Earthquakes Potentially Triggered by Fluid Disposal and Hydraulic Fracturing

For nearly a century, earthquakes apparently triggered by fluid injection have been observed in many parts of the world (National Research Council [NRC], 2012). Although injection‐related seismicity



Enhanced Remote Earthquake Triggering at Fluid-Injection Sites in the Midwestern United States

It is demonstrated that in the midwestern United States, some areas with increased human-induced seismicity are also more prone to further earthquakes triggered by the seismic waves from large, remote earthquakes.

Disposal of Hydrofracking Waste Fluid by Injection into Subsurface Aquifers Triggers Earthquake Swarm in Central Arkansas with Potential for Damaging Earthquake

Only a handful of the thousands of waste disposal wells across the United States have been linked to induced or triggered earthquakes. Still, two well-documented cases—Rocky Mountain Arsenal,

Potentially induced earthquakes in Oklahoma, USA: Links between wastewater injection and the 2011 Mw 5.7 earthquake sequence

Significant earthquakes are increasingly occurring within the continental interior of the United States, including five of moment magnitude (Mw) ≥ 5.0 in 2011 alone. Concurrently, the volume of fluid

Injection-Induced Earthquakes

The current understanding of the causes and mechanics of earthquakes caused by human activity, including injection of wastewater into deep formations and emerging technologies related to oil and gas recovery, is reviewed.

Maximum magnitude earthquakes induced by fluid injection

Analysis of numerous case histories of earthquake sequences induced by fluid injection at depth reveals that the maximum magnitude appears to be limited according to the total volume of fluid

Induced seismicity associated with fluid injection into a deep well in Youngstown, Ohio

Over 109 small earthquakes (Mw 0.4–3.9) were detected during January 2011 to February 2012 in the Youngstown, Ohio area, where there were no known earthquakes in the past. These shocks were close to

The 2001–Present Induced Earthquake Sequence in the Raton Basin of Northern New Mexico and Southern Colorado

We investigate the ongoing seismicity in the Raton Basin and find that the deep injection of wastewater from the coal-bed methane field is responsible for inducing the majority of the seismicity

A Fluid-Injection-Triggered Earthquake Sequence in Ashtabula, Ohio: Implications for Seismogenesis in Stable Continental Regions

A persistent earthquake sequence in northeast Ohio includes many distinct fore-main-aftershock subsequences, illuminates two faults, and was triggered by fluid injection. The first known earthquake

Deep-Injection and Closely Monitored Induced Seismicity at Paradox Valley, Colorado

The U.S. Bureau of Reclamation’s Paradox Valley Unit (pvu) extracts aquifer brine from nine shallow wells along the Dolores River, Paradox Valley, in southwestern Colorado and, after treating, high

Two-year survey comparing earthquake activity and injection-well locations in the Barnett Shale, Texas

  • C. Frohlich
  • Geology
    Proceedings of the National Academy of Sciences
  • 2012
Between November 2009 and September 2011, temporary seismographs deployed under the EarthScope USArray program were situated on a 70-km grid covering the Barnett Shale in Texas, recording data and located 67 earthquakes, more than eight times as many as reported by the National Earthquake Information Center.