AEG 2021 ANNUAL MEETING
Technical Session #5
Evaluating Geologic and Seismic Hazards and the Potential Need for Hazard Mitigation Symposium, Part I (Sponsored by GeoEngineers) (Sponsored by Harris-Galveston Subsidence District) This symposium showcases practical examples illustrating how data were collected and analyzed to evaluate the presence or absence of geologic and seismic hazards in a variety of geologic and geographic settings for a broad range of natural hazards. Separate keynote presentations blend related practical examples and lessons learned with the evolutionary histories of the Senior Seismic Hazard Analysis Committee (SSHAC) process and the field of paleoseismology. Other presentations address application of the SSHAC process and parallel paleoseismic and volcanic hazard studies at existing nuclear power plant sites in Taiwan; surface-rupturing earthquakes in slow deforming regions in Peru, Ecuador, and France; geoenvironmental hazards and community growth into geohazard areas in Peru; flooding, debris flow history, and landslide dams in California; paleoseismic studies for characterizing large upper plate earthquakes in Washington and engineering of pipelines across active faults; potential seepage and internal erosion of karstic foundation units at a dam site in Tennessee; communicating with geotechnical and structural engineers about geologic and seismic hazards; geophysical mapping of the Mt. Bonnell Fault of the Balcones Fault Zone in Texas; the 1811–1812 New Madrid earthquakes; potential hazards for proposed nuclear power plant sites related to karst in Tennessee and faulting and reservoir induced seismicity in South Carolina; seismically induced shaking, liquefaction, and lateral spreading in California and New Zealand; volcanism and related hazards at Mt. Adams in Washington; landslides or other slope and rock face stability issues in Arizona, California, Colorado, Utah, and Washington; and implications for federal land management agencies due to the January 2021 National Landslide Hazards Act. If hazards that could pose an unacceptable risk to public health and safety and the environment were determined to exist, then the need for a mitigation plan is also evaluated for some examples. In examples where mitigation planning was not part of the evaluation, the presentations provide information related to data collection and analysis methods that have proven successful for systematic evaluation of geologic and seismic hazards and offer guidance on methods that may be applicable for similar evaluations at other locations.
Conveners: Mark Molinari
Room: Madero
Time
Speaker
Title
8:00–8:40
Kevin & Ryan Coppersmith
Lessons Learned from Implementation of the SSHAC Process over 25 Years of Hazard Studies
8:40–9:00
Jamie Schick
Mountain Tunnel Access Roadway Improvements
9:00–9:20
Edward Wellman
Thermal Imaging for Rockfall Detection
9:20–9:40
Francisco Gomez
Assessing Rock Face Instability with Ground-based Interferometric Radar: Application to Rock Faces in Eastern Utah
9:40–10:00
Kevin Clahan
Seismic and Volcanic Hazard Studies for SSHAC and PVHA Evaluations at Existing Nuclear Power Stations in Taiwan
10:20–10:40
Lynne Carpenter
The 2021 National Landslide Hazards Act and Implications for Federal Land Management Agencies
10:40–11:00
J. David Rogers
Landslide Dams and Historic Outbreak Flood Events, Community of Montecito, Southern Santa Barbara County, California (Presented By Larry Gurrola)
11:00–11:20
Larry Gurrola
Flood and Debris Flow History of the Montecito Watersheds, Santa Barbara County, California
11:20–11:40
Mark Molinari
Empirical Analysis and Development of Landslide Runout Equations for Glacial Strata in the Salish Lowlands, Washington
11:40–12:00
Isaac Pope
Revisiting the Forgotten Volcano: Volcanic History and Hazards of Mount Adams
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On the Cover…
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September 2021
AEG 64th Annual Meeting Program with Abstracts
Images from the Meeting’s Field Courses & Guest Tours clockwise from top left: Field Course 6 – Canyon Lake Gorge Field Course 4 – Karst Cave – Cave Without a Name Natural Bridges Cavern San Antonio River Improvements Project
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