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Skoumal_Robert_MS_Thesis.pdf (1.06 MB)

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Optimizing Multi-Station Earthquake Template Matching Through Re-Examination of the Youngstown, Ohio Sequence

Skoumal, Robert J
http://orcid.org/0000-0002-5627-6239
http://rave.ohiolink.edu/etdc/view?acc_num=miami1399664260

Abstract Details

2014, Master of Science, Miami University, Geology and Environmental Earth Science.
A series of earthquakes in 2011 near Youngstown, OH has been a focal point for discussions of seismicity induced by nearby wastewater disposal wells. Utilizing an efficient waveform template matching procedure, the optimal correlation template to study the Youngstown sequence was identified by varying parameters such as the stations utilized, frequency passband, and seismogram length. A catalog composed of 566 events was identified between January 2011 and February 2014. Double-difference relocation refines seismicity to a ~800 m linear streak from the Northstar 1 injection well to the WSW along the same strike as the fault plane of the largest event. Our catalog suggests triggering caused by the 2011 M 9.0 Tohoku earthquake indicating that fluid injection brought the Precambrian basement to near-critical stress. Calculated Gutenberg-Richter b-values are consistent with trends observed in other regions with seismicity induced by fluid injection.
Michael Brudzinski, PhD (Advisor)
Brian Currie, PhD (Committee Member)
Jonathan Levy, PhD (Committee Member)
23 p.
Geological; Geology; Geophysical; Geophysics
Induced Seismicity; Fluid Injection; Wastewater disposal; Youngstown; Template Matching; Cross-correlation

Recommended Citations

Citations

  • Skoumal, R. J. (2014). Optimizing Multi-Station Earthquake Template Matching Through Re-Examination of the Youngstown, Ohio Sequence [Master's thesis, Miami University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=miami1399664260

    APA Style (7th edition)

  • Skoumal, Robert. Optimizing Multi-Station Earthquake Template Matching Through Re-Examination of the Youngstown, Ohio Sequence. 2014. Miami University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=miami1399664260.

    MLA Style (8th edition)

  • Skoumal, Robert. "Optimizing Multi-Station Earthquake Template Matching Through Re-Examination of the Youngstown, Ohio Sequence." Master's thesis, Miami University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=miami1399664260

    Chicago Manual of Style (17th edition)

miami1399664260
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© 2014, all rights reserved.
This open access ETD is published by Miami University and OhioLINK.