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DTSTART;TZID=America/New_York:20220222T180000
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DTSTAMP:20220222T134929Z
CREATED:20211117T130719Z
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UID:2021-1645552800-1645560000@atlantageologicalsociety.org
SUMMARY:AGS Monthly Meeting
DESCRIPTION:Title:  Better Understanding Seismic Activity in the Southeast USA: Case studies of the Eastern Tennessee Seismic Zone and Vicinity of the Thurmond Reservoir \nAbstract: The Eastern Tennessee Seismic Zone (ETSZ) is the second most active seismic zone in the eastern United States\, after the New Madrid Seismic zone in the Mississippi Valley area. A few faults have been identified in the region\, but many remain unknown or poorly constrained at depth. We apply a matched filter technique to detect earthquakes not previously catalogued in the ETSZ. We use 15 years of catalogued earthquakes in this region to detect missing events in the same time period (January 2005 to May 2020). We also calculate the magnitudes of new events and relocate the both the new detections and previously catalogued earthquakes to better constrain earthquake locations in the ETSZ. Relocated hypocenters are examined to resolve fault structures and orientations. Our ultimate goal is to use spatio-temporal changes of seismicity during the last 15 years reveal subsurface fault structures and the driving forces of seismicity along the ETSZ. We also present our findings on a notable earthquake in the vicinity of the Thurmond Reservoir\, located at the border between Georgia and South Carolina. The Mw 4.1 earthquake on February 15\, 2014 near Edgefield\, South Carolina was one of the largest recorded by nearby modern seismometers\, providing an opportunity to study its source properties and aftershock productivity. The low number of detected events in the weeks around the mainshock suggests that this sequence is deficient in aftershock production\, as compared with expected aftershock productivities for other mainshocks of similar magnitudes. \nSpeaker:  Clara Daniels \nBio:\nClara Daniels is a 5th year PhD student studying Seismology at Georgia Institute of Technology\, getting ready to graduate this May!  She has her Bachelor’s in Electrical Engineering\, with a focus on Digital Signal Processing\, also from Georgia Tech. She grew up in Pennsylvania and Georgia\, which is why earthquakes on the East Coast are so interesting to her and the focus of her research. \nWhen: February 22\, 2022 (NOTE NEW TIME)\n6:00: Pizza social\n6:30: Business meeting\n6:45: Presentation \nThe meeting will be in person and via webcast. Click on this link to join meeting: https://us02web.zoom.us/j/85396665201?pwd=NnMvVzFXdjllc1Q4OE4vWFJWemE0Zz09
URL:https://atlantageologicalsociety.org/event/ags-monthly-meeting-5/
LOCATION:Fernbank Museum\, 767 Clifton Rd\, Atlanta\, GA\, 30307\, United States
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