Scott EK Bennett, Ph.D.
Scott is a Research Geologist with the U.S. Geological Survey. He works for the Pacific Northwest Geologic Mapping and Urban Hazards Project and the Lower Colorado River System Project in the Geology, Minerals, Energy, & Geophysics Science Center. His research is focused on geologic mapping, structural geology, neotectonics, and geomorphology of these and other regions of western North America.
Biography
Scott Bennett is a Research geologist who combines geologic mapping, structural geology, basin analysis, and geochronology to investigate the timing and rates of crustal deformation. His interdisciplinary and collaborative research focuses on quantifying surface and crustal processes that yield insight into lithospheric-scale plate tectonic systems.
Scott studies the deformation and evolving landscape of continents, collecting data that allows him to reconstruct tectonic movements over a large range of temporal and spatial scales, from earthquakes to orogenies and from faults to plate boundaries. Scott has experience conducting research in the Cascadia subduction zone of the Pacific Northwest (USA and Canada), on both margins of the Gulf of California oblique rift, along the San Andreas fault system, within the Walker Lane, and across the Basin and Range including the Rio Grande Rift.
Professional Experience:
- Research Geologist -- Tectonics and Geologic Mapping -- USGS Menlo Park, CA; 2017-present
- Research Geologist -- Tectonics, Paleoseismology, and Geologic Mapping -- USGS Seattle, WA; 2015-2017
- Mendenhall Post-doc -- Paleoseismology and Earthquake Hazards -- USGS Golden, CO; 2013-2015
- Graduate Student Researcher -- Tectonics, Neotectonics, and Geologic Mapping -- University of California, Davis; 2009-2013
- Exploration Geology Intern -- Basin Analysis and Tectonics -- Aera Energy; Summer 2011
- Graduate Student Researcher -- Tectonics and Geologic Mapping -- University of North Carolina, Chapel Hill; 2006-2009
- Engineering Geologist -- Landslide Analysis, Mapping, Paleoseismology, -- GeoConcepts, Inc. & Nolan Associates; 2002-2006
Education:
- Ph.D., Geology, University of California, Davis; 2013
- M.S., Geological Sciences, University of North Carolina – Chapel Hill; 2009
- B.S., Geological Sciences, California State University, Northridge; 2004
- Minor in Geography, California State University, Northridge; 2004
Science and Products
Pacific Northwest Geologic Mapping: Northern Pacific Border, Cascades and Columbia
The Pacific Northwest is an area created by active and complex geological processes. On its path to the Pacific Ocean, the Columbia River slices through a chain of active volcanoes located along the western margin of the U.S. in Washington, Oregon, and northern California. These volcanoes rest above the active Cascadia subduction zone, which is the boundary where the oceanic tectonic plate...
New Methods for Dating and Sequencing Ancient Earthquakes Along the Wasatch Fault Zone
Release Date: OCTOBER 12, 2018
Complex geologic sites, like those between the fault segments along the Wasatch fault zone in Utah, make the dating and ordering past earthquakes a difficult task. Two new methods were used to make this task easier and to get better results.
How Big and How Frequent Are Earthquakes on the Wasatch Fault?
Release Date: FEBRUARY 1, 2015
Paleoseismology along the Wasatch Fault in Utah is helping to estimate the shaking risk to nearby towns.
Tectonostratigraphic record of late Miocene–early Pliocene transtensional faulting in the Eastern California shear zone, southwestern USA
The Eastern California shear zone (ECSZ; southwestern USA) accommodates ~20%–25% of Pacific–North America relative plate motion east of the San Andreas fault, yet little is known about its early tectonic evolution. This paper presents a detailed stratigraphic and structural analysis of the uppermost Miocene to lower Pliocene Bouse Formation in the...
Dorsey, Rebecca J.; O'Connell, Brennan; Gardner, Kevin; Homan, Mindy B.; Bennett, Scott E. K.; Thacker, Jacob; Darin, Michael H. Paleoseismic trenching reveals late quaternary kinematics of the Leech River Fault: Implications for forearc strain accumulation in Northern Cascadia
New paleoseismic trenching indicates late Quaternary oblique right‐lateral slip on the Leech River fault, southern Vancouver Island, Canada, and constrains permanent forearc deformation in northern Cascadia. A south‐to‐north reduction in northward Global Navigation Satellite System velocities and seismicity across the Olympic Mountains, Strait of...
Harrichhausen, Nicolas; Morell, Kristin D.; Regalla, Christine; Bennett, Scott E. K.; Leonard, Lucinda J.; Lynch, Emerson M.; Nissen, Edwin Oases: Finding hidden biodiversity gems in the southern Sonoran Desert
In the arid southern Sonoran Desert, the rugged canyons of the Sierra El Aguaje contain numerous freshwater oases. These habitats are supported by small springs which are usually located along geologic faults in volcanic and granitic bedrock. Genetic evidence from freshwater-obligate species (e.g., fish and frogs) suggests these or similar spring-...
Bogan, Michael T.; Ballesteros-Córdova, Carlos; Bennett, S.; Darin, Michael H.; Findley, Lloyd T.; Varela-Romero, Alejandro Fault trace mapping and surface-fault-rupture special study zone delineation of the Wasatch Fault Zone, Utah and Idaho
The Wasatch fault zone (WFZ) is a 220-mile-long (350-km) fault zone divided into 10 structural segments extending from southeastern Idaho to central Utah. The central five segments of the WFZ underlie the densely populated Wasatch Front region, where the majority of Utah’s population and economy are proximal to the fault zone. The West Valley...
McDonald, Greg N.; Kleber, Emily J.; Hiscock, Adam I.; Bennett, S.; Bowman, Steve D. 6&6: A transdisciplinary approach to art-science collaboration
Despite an historical connection between the arts and sciences, in the past century, the two disciplines have been greatly siloed. However, there is a renewed interest in collaboration across the arts and sciences to support conservation practice by understanding and communicating complex environmental, social, and cultural challenges in novel...
Clark, Sara; Magrane, Eric; Baumgartner, Thomas; Bennett, Scott E. K.; Bogan, Micahel; Edwards, Taylor; Dimmitt, Mark A.; Green, Heather; Hedgcock, Charles; Johnson, Bemjamin M.; Johnson, Maria R.; Velo, Kathleen; Wilder, Benjamin T. Documentation of Surface Fault Rupture and Ground‐Deformation Features Produced by the 4 and 5 July 2019 Mw 6.4 and Mw 7.1 Ridgecrest Earthquake Sequence
The Mw">MwMw 6.4 and Mw">MwMw 7.1 Ridgecrest earthquake sequence occurred on 4 and 5 July 2019 within the eastern California shear zone of southern California. Both events produced extensive surface faulting and ground deformation within Indian Wells Valley and Searles Valley. In the weeks following the earthquakes, more...
Ponti, Daniel J.; Blair, James Luke; Rosa Carla M; Thomas, Kate; Pickering, Alexandra; Akciz, Sinan; Angster, Stephen J.; Avouac, Jean-Philipe; Bachhuber, Jeffrey; Bacon, Steven; Barth, Nicolas C.; Bennett, S.; Blake, Kelly; Bork, Stephan; Brooks, Benjamin A.; Bullard, Thomas; Burgess, Paul A.; Chupik, Colin; Dawson, Timothy E.; DeFrisco, Michael; Delano, Jaime E.; DeLong, Stephen B.; Dolan, James D.; Donnellan, Andrea; Duross, Christopher; Ericksen, Todd; Frost, Erik; Funning, Gareth J.; Gold, Ryan D.; Graehl, Nicholas A; Gutierrez, Carlos; Haddon, Elizabeth; Hatem, Alexandra Elise; Helms, John; Hernandez, Janis; Hitchcock, Christopher S.; Holland, Peter; Hudnut, Kenneth W.; Kendrick, Katherine; Koehler, Richard D; Kozaci, Ozgur; Ladinsky, Tyler C.; Leeper, Robert; Madugo, Christopher; Mareschal, Maxime; McDonald, James; McPhillips, Devin; Milliner, Christopher; Mongovin, Daniel; Morelan, Alexander; Nale, Stephanie; Nevitt, Johanna; O'Neal, Matt; Olsen, Brian J.; Oskin, Michael; Padilla, Salena; Patton, Jason; Philibosian, Belle; Pierce, Ian; Pridmore, Cynthia; Roth, Nathaniel; Sandwell, David ; Scharer, Katherine; Seitz, Gordon G.; Singleton, Drake; Smith-Konter, Bridget; Spangler, Eleanor; Swanson, Brian J.; Jobe, Jessica Thompson; Treiman, Jerome; Valencia, Francesca; Vanderwal, Joshua; Williams, Alana; Xu, Xiaohua; Zachariasen, Judith; Zimmerman, Jade; Zinke, Robert Evidence of previous faulting along the 2019 Ridgecrest, California earthquake ruptures
The July 2019 Ridgecrest earthquake sequence in southeastern California was characterized as surprising because only ~35% of the rupture occurred on previously mapped faults. Employing more detailed inspection of pre-event high-resolution topography and imagery in combination with field observations, we document evidence of active faulting in the...
Thompson Jobe, Jessica; Philibosian, Belle; Chupik, Colin; Dawson, Timothy E.; Bennett, Scott E. K.; Gold, Ryan D.; Duross, Christopher; Ladinsky, Tyler C.; Kendrick, Katherine; Haddon, Elizabeth; Pierce, Ian; Swanson, Brian J.; Seitz, Gordon G. Surface displacement distributions for the July 2019 Ridgecrest, California earthquake ruptures
Surface rupture in the 2019 Ridgecrest, California, earthquake sequence occurred along two orthogonal cross faults and includes dominantly left‐lateral and northeast‐striking rupture in the Mw">Mw 6.4 foreshock and dominantly right‐lateral and northwest‐striking rupture in the Mw">Mw 7.1 mainshock. We present >...
Duross, Christopher; Gold, Ryan D.; Dawson, Timothy E.; Scharer, Katherine; Kendrick, Katherine; Akciz, Sinan; Angster, Stephen J.; Bachhuber, Jeffery; Bacon, Steven; Bennett, Scott E. K.; Blair, Luke; Brooks, Benjamin A.; Bullard, Thomas; Burgess, W. Paul; Chupik, Colin; DeFrisco, Michael; Delano, Jaime; Dolan, James D.; Frost, Erik; Graehl, Nick; Haddon, Elizabeth; Hatem, Alexandra Elise; Hernandez, Janis; Hitchcock, Christopher S.; Hudnut, Kennth; Thompson Jobe, Jessica; Koehler, Richard D; Kozaci, Ozgur; Ladinsky, Tyler C.; Madugo, Christopher; McPhillips, Devin; Milliner, Christopher; Morelan, Alexander; Olson, Brian; Patton, Jason; Philibosian, Belle; Pickering, Alexandra J.; Pierce, Ian; Ponti, Daniel J.; Seitz, Gordon G.; Spangler, Eleanor; Swanson, Brian J.; Thomas, Kate; Treiman, Jerome; Valencia, Francesca; Williams, Alana; Zinke, Robert Global physical controls on estuarine habitat distribution during sea levelchange: Consequences for genetic diversification through time
Determining the extrinsic (physical) factors controlling speciation and diversification of species through time is of key interest in paleontology and evolutionary biology. The role of sea-level change in shaping species richness patterns of marginal marine species has received much attention, but with variable conclusions. Recent work combining...
Dolby, Greer A.; Bedolla, Arturo M.; Bennett, S.; Jacobs, David K. Neotectonic and paleoseismic analysis of the northwest extent of Holocene surface deformation along the Meers Fault, Oklahoma
TheMeers fault (Oklahoma) is one of fewseismogenic structures with evidence for Holocene surface rupture in the stable continental region of North America. The 37-kilometer-long southeast section of the full 54-kilometer-long Meers fault is interpreted to be Holocene active. The 17-kilometer-long northwest section is considered Quaternary active,...
Hornsby, Kristofer T.; Streig, Ashley R.; Bennett, S.; Chang, Jefferson C.; Mahan, Shannon A. Mesozoic to Cenozoic sedimentation, tectonics, and metallogeny of Sonora, Mexico
We will embark on a five-day journey through northern, western, and central Sonora, in which we will see excellent examples of mostly Mesozoic to Cenozoic tectonics, sedimentation, and metallogeny. On Day 1, we will visit the porphyry copper deposit at Ajo, Arizona, and several Pleistocene cinder cones and maar craters in the Pinacate Biosphere...
Price, Jason; Calmus, Thierry; Bennett, S.; Ochoa-Landín, Lucas Holocene surface rupture history of an active forearc fault redefines seismic hazard in Southwestern British Columbia, Canada
Characterizing the hazard associated with Quaternary‐active faults in the forearc crust of the northern Cascadia subduction zone has proven challenging due to historically low rates of seismicity, late Quaternary glacial scouring, and dense vegetation that often obscures fault‐related geomorphic features. We couple lidar topography with...
Morell, K. D.; Regalla, C.; Amos, C.; Bennett, S.; Leonard, L.; Graham, A.; Reedy, T.; Levson, V.; Telka, A.