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Low-Level Seismicity in Ohio

Tupper, Maxwell T.
http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1375532339

Abstract Details

2013, Master of Science (MS), Ohio University, Geological Sciences (Arts and Sciences).
Ohio records are examined to identify previously undocumented low-level earthquakes in Ohio and surrounding regions. Records are scanned at multiple stations (at least four) to identify peak amplitude arrivals within a time window specified by the lowest likely arrival phase velocity and the maximum inter-station distance. A potential arrival peak must have an amplitude of at least four times the RMS amplitude over an entire hour containing that peak. The location (epicenter) of the potential earthquake is located using a velocity-independent arrival-order-location (AOL) technique. The event is classified as a probable earthquake if it is similarly identified and located using a different set of four stations. One hundred and sixty nine potential events were located by a maximum amplitude AOL method over a period of four years using a minimum peak amplitude threshold of four times the RMS noise level and two sets of four matching stations. Velocities were found to be an average of 3.1 km/s which is somewhat consistent with the S-wave velocity of 3.58 km/s in the standard velocity model.
Douglas Green (Advisor)
Gregory Nadon (Committee Member)
Eung Seok Lee (Committee Member)
126 p.
Geology; Geophysics
OhioSeis; Seismicity; Arrival Order Location Method;

Recommended Citations

Citations

  • Tupper, M. T. (2013). Low-Level Seismicity in Ohio [Master's thesis, Ohio University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1375532339

    APA Style (7th edition)

  • Tupper, Maxwell. Low-Level Seismicity in Ohio. 2013. Ohio University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1375532339.

    MLA Style (8th edition)

  • Tupper, Maxwell. "Low-Level Seismicity in Ohio." Master's thesis, Ohio University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1375532339

    Chicago Manual of Style (17th edition)

ohiou1375532339
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© 2013, all rights reserved.
This open access ETD is published by Ohio University and OhioLINK.