Case studies of Induced Earthquakes in Ohio for 2016 and 2017
Abstract
Over the last four years, unconventional oil and gas production activity in the Utica shale play in Ohio has induced over 20 earthquake sequences (Friberg et al, 2014; Skoumal et al, 2016; Friberg et al, 2016; Kozlowska et al, in submission) including a few new ones in 2017. The majority of the induced events have been attributed to optimally oriented faults located in crystalline basement rocks, which are closer to the Utica formation than the Marcellus shale, a shallower formation more typically targeted in Pennsylvania and West Virginia. A number of earthquake sequences in 2016 and 2017 are examined using multi-station cross correlation template matching techniques. We examine the Gutenberg-Richter b-values and, where possible, the b-value evolution of the earthquake sequences to help determine seismogensis of the events. Refined earthquake locations using HypoDD are determined using data from stations operated by the USGS, IRIS, ODNR, Miami University, and PASEIS.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2017
- Bibcode:
- 2017AGUFM.S23B0801F
- Keywords:
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- 7209 Earthquake dynamics;
- SEISMOLOGY;
- 7215 Earthquake source observations;
- SEISMOLOGY;
- 7260 Theory;
- SEISMOLOGY