Category Archive: Seismicity

Observations of static Coulomb stress triggering of the November 2011 M5.7 Oklahoma earthquake sequence

Key findings: This research suggests that the M5.7 quake was the largest human-caused earthquake associated with wastewater injection.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. Observations of static Coulomb stress triggering of the November 2011 M5.7 Oklahoma earthquake sequence Author(s): …

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Permanent link to this article: http://frack-free.rocks/observations-of-static-coulomb-stress-triggering-of-the-november-2011-m5-7-oklahoma-earthquake-sequence/

On Shaky Ground: Fracking, Acidizing, and Increased Earthquake Risk in California

This study evaluates links between wastewater injection and the 2011 Mw 5.7 earthquake sequence in California. Key findings: In light of the known environmental and health risks from drilling, well stimulation and wastewater disposal, the link between wastewater injection wells and earthquakes in other states, the potential for a massive expansion of drilling and wastewater …

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Permanent link to this article: http://frack-free.rocks/on-shaky-ground-fracking-acidizing-and-increased-earthquake-risk-in-california/

Injection-Induced Earthquakes

Injection-Induced Earthquakes Author(s): William L. Ellsworth Date: 07.2013 Source / Publisher: Science Key findings: More than 300 earthquakes above a magnitude 3.0 occurred from 2010-2012, compared with national average rate of 21 earthquakes per year observed from 1967-2000. It coincides with the injection of wastewater in deep disposal wells. Abstract Fulltext See also: Laura Beans, …

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Permanent link to this article: http://frack-free.rocks/injection-induced-earthquakes/

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

Enhanced Remote Earthquake Triggering at Fluid-Injection Sites in the Midwestern United States Author: Nicholas J. van der Elst Date: 07.2013 Source / Publisher: Science Key findings: The water injection appears to prime cracks in the rock, making them vulnerable to triggering by tremors from earthquakes thousands of miles away. Evidence that injection wells can set …

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Permanent link to this article: http://frack-free.rocks/remote-earthquake-triggering-at-fluid-injection-sites-in-the-midwestern-united-states/

Brief review of threats to Canada’s groundwater from the oil and gas industry’s …

Brief review of threats to Canada’s groundwater from the oil and gas industry’s methane migration and hydraulic fracturing Author(s): Jessica Ernst Date: 06.2013 First hand comprehensive review of fossile fuel exploitation problems in Canada on 90+ pages. The author: As somebody who has reported for 20 years on this industry in [Alberta], I can tell …

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Permanent link to this article: http://frack-free.rocks/brief-review-of-threats-to-canadas-groundwater-from-the-oil-and-gas-industrys/

Toxic Chemicals in the Exploration and Production of Gas from Unconventional Sources

Toxic Chemicals in the Exploration and Production of Gas from Unconventional Sources Author(s): National Toxics Network, Bangalow, Australia Date: 04.2013 This brief is adapted from NTN presentation Unconventional Gas: Shared Environmental Health Concerns presented to the OECD Focus Session on Chemicals Used and Released in Hydraulic Fracturing, Paris, November 2012 by Dr Mariann Lloyd-Smith, Senior …

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Permanent link to this article: http://frack-free.rocks/toxic-chemicals-in-the-exploration-and-production-of-gas-from-unconventional-sources/

Potential link between wastewater injection and M5.7 earthquake in Oklahoma

Key findings: Injection-induced earthquakes could be larger and they could occur on much longer timescales than previously thought. Induced earthquakes could be larger than previously thought, since this type of deep waste fluid injection has the potential to unlock tectonic stresses built up over decades.A 5.7 magnitude frackquake near Prague, OK, in 2011 damaged 14 …

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Permanent link to this article: http://frack-free.rocks/potential-link-between-wastewater-injection-and-m5-7-earthquake-in-oklahoma/

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