Category Archive: Seismicity

Microseismicity Induced by Deep Wastewater Injection in Southern Trumbull County, Ohio

In this study, multistation waveform template matching as an earthquake fingerprint scanning technique to investigate the potential relationship between the earthquake and the injection operations is used. Bibliography: Robert J. Skoumal, Michael R. Brudzinski, Brian S. Currie Microseismicity Induced by Deep Wastewater Injection in Southern Trumbull County, Ohio Seismological Research Letters DOI: 10.1785/0220150055 Published on …

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Permanent link to this article: http://frack-free.rocks/microseismicity-induced-by-deep-wastewater-injection-in-southern-trumbull-county-ohio/

Stress changes before and after the Wenchuan Earthquake using hydraulic fracturing measurements

This study draws conclusions from data gathered over a period of 10 years in the earthquake prone area of the Longmenshan fault belt, Sichuan, China. They used the method of in situ stress measurement by applying hydraulic fracturing and conducted measurement campaigns before and after the devastating quake in the Wenchuan Valley in 2008 in …

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Permanent link to this article: http://frack-free.rocks/stress-changes-before-and-after-the-wenchuan-earthquake-using-hydraulic-fracturing-measurements/

Causal factors for seismicity near Azle, Texas

This investigation found a plausible connection between the series of earthquakes near Azle, Texas, in November 2013 began along a mapped ancient fault system and human activity: Pore-pressure models demonstrated that a combination of brine production and wastewater injection near the fault generated subsurface pressures sufficient to induce earthquakes on near-critically stressed faults. Bibliography: Matthew …

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Permanent link to this article: http://frack-free.rocks/causal-factors-for-seismicity-near-azle-texas/

The Urgent Case for a Ban on Fracking

Fracking, or “hydraulic fracturing”, is a dangerous process that brings a host of problems. This comprehensive report details the facts on fracking and the many reasons why it should be banned. Bibliography: Food & Water Watch The Urgent Case for a Ban on Fracking Food & Water Watch, Sep 14 See also: Food & Water …

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Permanent link to this article: http://frack-free.rocks/the-urgent-case-for-a-ban-on-fracking/

Earthquakes Induced by Hydraulic Fracturing in Poland Township, Ohio

Felt seismicity induced by hydraulic fracturing is very rare, with only a handful of reported cases worldwide. Using an optimized multistation cross‐correlation template‐matching routine, 77 earthquakes were identified in Poland Township, Mahoning County, Ohio, that were closely related spatially and temporally to active hydraulic fracturing operations. After all investigation, it appears the hydraulic fracturing induced …

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Permanent link to this article: http://frack-free.rocks/earthquakes-induced-by-hydraulic-fracturing-in-poland-township-ohio/

Characterization of an Earthquake Sequence Triggered by Hydraulic Fracturing in Harrison County, Ohio

In this paper, the first evidence of positive magnitude earthquakes on a previously unmapped fault in Harrison County, Ohio, that can be related to a hydraulic fracture operation, is shown. Bibliography: Paul A. Friberg, Glenda M. Besana‐Ostman, Ilya Dricker Characterization of an Earthquake Sequence Triggered by Hydraulic Fracturing in Harrison County, Ohio Seismological Research Letters …

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Permanent link to this article: http://frack-free.rocks/characterization-of-an-earthquake-sequence-triggered-by-hydraulic-fracturing-in-harrison-county-ohio/

Environmental Impacts of Fracking Related to Exploration and Exploitation of Unconventional Natural Gas Deposits (part 2)

This report issued by German authorities shows that exposure and health outcomes research related to unconventional oil and gas operations is urgently needed and that community engagement is essential in the design of such studies. Bibliography: Uwe Dannwolf, Anke Heckelsmüller (editors), Nikolaus Steiner and Carola Rink (Anwaltskanzlei Steiner), Dirk Weichgrebe, Katrin Kayser, Ralph Zwafink, Karl–Heinz …

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Permanent link to this article: http://frack-free.rocks/environmental-impacts-of-fracking-related-to-exploration-and-exploitation-of-unconventional-natural-gas-deposits-part-2/

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