How large are the earthquakes induced by fluid injection?
The largest earthquake induced by fluid injection that has been documented in the scientific literature was a magnitude 5.8 earthquake on September 23, 2016 in central Oklahoma.
Four magnitude 5+ earthquakes have occurred in Oklahoma, three of which occurred in 2016. In 2011, a magnitude 5.3 earthquake was induced by fluid injection in the Raton Basin, Colorado. Earthquakes with magnitudes between 4.5 and 5.0 have also been induced by fluid injection in Arkansas and Kansas.
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The 2013–2016 induced earthquakes in Harper and Sumner Counties, southern Kansas
We examine the first four years (2013–2016) of the ongoing seismicity in southern Kansas using high‐precision locations derived from a local seismometer network. The earthquakes occur almost exclusively in the shallow crystalline basement, below the wastewater injection horizon of the Arbuckle Group at the base of the sedimentary section. Multiple...
Rubinstein, Justin L.; Ellsworth, William L.; Dougherty, Sara L. Was the Mw 7.5 1952 Kern County, California, earthquake induced (or triggered)?
Several recent studies have presented evidence that significant induced earthquakes occurred in a number of oil-producing regions during the early and mid-twentieth century related to either production or wastewater injection. We consider whether the 21 July 1952 Mw 7.5 Kern County earthquake might have been induced by production in the...
Hough, Susan E.; Tsai, Victor C.; Walker, Robert; Aminzadeh, Fred Nucleation speed limit on remote fluid induced earthquakes
Earthquakes triggered by other remote seismic events are explained as a response to long-traveling seismic waves that temporarily stress the crust. However, delays of hours or days after seismic waves pass through are reported by several studies, which are difficult to reconcile with the transient stresses imparted by seismic waves. We show that...
Parsons, Thomas E.; Akinci, Aybige; Malignini, Luca Potentially induced earthquakes during the early twentieth century in the Los Angeles Basin
Recent studies have presented evidence that early to mid‐twentieth‐century earthquakes in Oklahoma and Texas were likely induced by fossil fuel production and/or injection of wastewater (Hough and Page, 2015; Frohlich et al., 2016). Considering seismicity from 1935 onward, Hauksson et al. (2015) concluded...
Hough, Susan E.; Page, Morgan T. 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 193 M≥3 earthquakes in 2009–2014, with 688 occurring in 2014 alone. Multiple damaging earthquakes have occurred during this...
Rubinstein, Justin L.; Mahani, Alireza Babaie Shaking from injection-induced earthquakes in the central and eastern United States
In this study I consider the ground motions generated by 11 moderate (Mw4.0-5.6) earthquakes in the central and eastern United States that are thought or suspected to be induced by fluid injection. Using spatially rich intensity data from the USGS “Did You Feel It?” system, I show that the distance decay of intensities for all events is...
Hough, Susan E. 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 injected into the subsurface related to the production of unconventional resources continues to rise. Here we identify the largest earthquake...
Keranen, Katie M.; Savage, Heather M.; Abers, Geoffrey A.; Cochran, Elizabeth S. Passive seismic monitoring of natural and induced earthquakes: Case studies, future directions and socio-economic relevance
An important discovery in crustal mechanics has been that the Earth’s crust is commonly stressed close to failure, even in tectonically quiet areas. As a result, small natural or man-made perturbations to the local stress field may trigger earthquakes. To understand these processes, Passive Seismic Monitoring (PSM) with seismometer arrays is...
Cloetingh, Sierd; Negendank, Jörg; Bohnhoff, Marco; Dresen, Georg; Ellsworth, William L.; Ito, Hisao
Wastewater Disposal Likely Induced February 2016 Magnitude 5.1 Oklahoma Earthquake
Distant wastewater disposal wells likely induced the third largest earthquake in recent Oklahoma record, the Feb. 13, 2016, magnitude 5.1 event roughly 32 kilometers northwest of Fairview, Oklahoma. These findings from the U.S. Geological Survey are available in the online edition of Geophysical Research Letters.
Magnitude 5.8 Earthquake in Oklahoma
A magnitude 5.8 earthquake struck in Oklahoma on September 3, 2016 at 12:02:44 UTC (7:02 am local time).
Evidence of Unconventional Oil and Gas Wastewater Found in Surface Waters near Underground Injection Site
These are the first published studies to demonstrate water-quality impacts to a surface stream due to activities at an unconventional oil and gas wastewater deep well injection disposal site.
EarthWord – Induced Seismicity
The occurrence or frequency of earthquakes for which the origin is attributable to human activities.
Induced Earthquakes Raise Chances of Damaging Shaking in 2016
For the first time, new USGS maps identify the potential for ground shaking from both human-induced and natural earthquakes in 2016.
A Century of Induced Earthquakes in Oklahoma?
The rate of earthquakes has increased sharply since 2009 in the central and eastern United States, with growing evidence confirming that these earthquakes are primarily caused by human activity, namely the injection of wastewater in deep disposal wells.
Coping with Earthquakes Induced by Fluid Injection
MENLO PARK, Calif.— A paper published today in Science provides a case for increasing transparency and data collection to enable strategies for mitigating the effects of human-induced earthquakes caused by wastewater injection associated with oil and gas production in the United States.
2011 Oklahoma Induced Earthquake May Have Triggered Larger Quake
In a new study involving researchers at the U.S. Geological Survey, scientists observed that a human-induced magnitude 5.0 earthquake near Prague, Oklahoma in November 2011 may have triggered the larger M5.7 earthquake less than a day later.
PubTalk 5/2018 — Yes Humans really are causing induced earthquakes
Title: Yes, Humans Really Are Causing Earthquakes! How Energy Industry Practices are Causing Earthquakes in America's Heartland
- In every year since 2014, Oklahoma has had more earthquakes than California.
- Oil and gas operations are "inducing" these earthquakes.
- The earthquake rate has dropped by more than 50 percent due to changes in industry
Damage in Cushing, Oklahoma from the Magnitude 5.0 Earthquake in 2016
Damage to buildings in Cushing, Oklahoma from the magnitude 5.0 earthquake on November 6, 2016. Unreinforced brick and stone masonry buildings and facades are vulnerable to strong shaking. Photograph credit: Dolan Paris, USGS
Damage in Cushing, Oklahoma from the Magnitude 5.0 Earthquake in 2016
Damage to buildings in Cushing, Oklahoma from the magnitude 5.0 earthquake on November 6, 2016. Unreinforced brick and stone masonry buildings and facades are vulnerable to strong shaking. Photograph credit: Dolan Paris, USGS
Damage in central Oklahoma from a magnitude 5.6 earthquake in 2011
House damage in central Oklahoma from the magnitude 5.6 earthquake on Nov. 6, 2011. Research conducted by USGS geophysicist Elizabeth Cochran and her university-based colleagues suggests that this earthquake was induced by injection into deep disposal wells in the Wilzetta North field. Credit: Brian Sherrod, USGS
USGS Forecast for Damage from Natural and Induced Earthquakes in 2016
USGS map displaying potential to experience damage from a natural or human-induced earthquake in 2016. Chances range from less than one percent to 12 percent.
Epicenter of the Oklahoma 5.6 earthquake on Sept 3, 2016
Wastewater observed seismicity map (2016)
USGS map displaying 21 areas where scientists have observed rapid changes in seismicity that have been associated with wastewater injection. The map also shows earthquakes—both natural and induced—recorded from 1980 to 2015 in the central and eastern U.S. with a magnitude greater than or equal to 2.5.