A5079907693- Geological and Geochemical Analysis
- earthquake and tectonic studies
- Seismology and Earthquake Studies
- Geological Studies and Exploration
- Geology and Paleoclimatology Research
- Geochemistry and Geologic Mapping
- Geological Modeling and Analysis
- Seismic Waves and Analysis
- Geological formations and processes
- Hydrocarbon exploration and reservoir analysis
- Aquatic Invertebrate Ecology and Behavior
- Seismic Imaging and Inversion Techniques
- Earthquake Detection and Analysis
- Methane Hydrates and Related Phenomena
- Hydropower, Displacement, Environmental Impact
- High-pressure geophysics and materials
- Disaster Management and Resilience
Washington Department of Natural Resources
2019
University of Nevada, Reno
2017-2018
Abstract An excavation across the Himalayan Frontal Thrust near Damak in eastern Nepal shows displacement on a fault plane dipping ~22° has produced vertical separation scarp equal to 5.5 m. Stratigraphic, structural, geometrical, and radiocarbon observations are interpreted indicate that is result of single earthquake 11.3 ± 3.5 m dip‐slip occurred 1146–1256 A.D. Empirical scaling laws thrust earthquakes characterized by average displacements this size may produce rupture lengths 450...
Abstract Characterizing the hazard associated with Quaternary‐active faults in forearc crust of northern Cascadia subduction zone has proven challenging due to historically low rates seismicity, late Quaternary glacial scouring, and dense vegetation that often obscures fault‐related geomorphic features. We couple lidar topography paleoseismic trenching across Leech River Fault on southern Vancouver Island produce first detailed surface rupture history an onland fault British Columbia,...
The upper crust in the forearc of Cascadia subduction zone hosts a complex network faults that accommodate trench-parallel and trench-normal shortening due to oblique northward migration Oregon/Washington block. Outside Seattle area, seismic potential major faults, as well how they connect 3-D network, is poorly known. Doty fault, major, north-dipping fault crosses I-5 corridor south Centralia-Chehalis urban area. Its length, orientation, hypothesized total offset are comparable active but...
The Rochester and Adna 7.5 minute quadrangles in the Washington forearc of Cascadia subduction zone encompass Doty fault, a large fault crossing I-5 corridor south Centralia. We have begun cooperative geological geophysical study area to assess seismic hazard water retention facility that has been proposed mitigate flooding along Chehalis River corridor. This region between Olympia Portland is undergoing north-south compression, clockwise rotation, regional uplift associated with both...