Ray Wells
Ray Wells is a research geologist in the Geology, Minerals, Energy, and Geophysics Science Center. He is a structural geologist investigating the tectonic and volcanic evolution of the Pacific Northwest.
Ray Wells received his B.S. in Geological Science from Penn State, his M.S. from University of Oregon, and his Ph.D. from the University of California, Santa Cruz. He has 45 years of field experience documenting the geologic structure and earthquake hazards of the Cascadia convergent margin in Oregon and Washington, focusing primarily on the Coast Range, Seattle - Portland urban corridor, and the Columbia River Gorge.
Professional Experience
2020-current, Research Geologist, U.S. Geological Survey
2017-Research Associate, Portland State University, Portland, OR
2016-Research Geologist Emeritus, U.S. Geological Survey
1995-2013 Project Chief, Pacific Northwest Urban Corridor Geologic Mapping, USGS, Menlo Park, CA
1991-1996 Cascadia Regional Coordinator - USGS Deep Continental Surveys
1981-2016 Research Geologist, U.S. Geological Survey
1980 Geologist, Washington Division of Geology and Earth Resources
1978-1980 Research Assistant, University of California, Santa Cruz
1976-1977 Teaching Assistant, University of California, Santa Cruz
1975-1976 Geologist, U.S. Geological Survey
1974 Geological Field Assistant, Mobil Oil Corp., Tyee Basin
1972-1974 Teaching Assistant, University of Oregon
1971 Geological Field Assistant, Johns-Mannville Ltd, Stillwater Complex
Education and Certifications
Ph.D., Geology, University of California, Santa Cruz, 1982
M.S., Geology, University of Oregon, 1975
B.S., Geology, Art, Pennsylvania State University, 1972
Affiliations and Memberships*
1977 - Current, American Geophysical Union
1974 - Current, Geological Society of America
1990 - Current, Seismological Society of America
Oregon Department of Geology and Mineral Industries
Bureau of Reclamation
Portland State University
Honors and Awards
Distinguished Service Award of the Department of the Interior
2017 Geological Society of America’s Geologic Mapping Award in honor of Florence Bascom
Science and Products
Maps Showing Inundation Depths, Ice-Rafted Erratics, and Sedimentary Facies of Late Pleistocene Missoula Floods in the Willamette Valley, Oregon
A revised dislocation model of interseismic deformation of the Cascadia subduction zone
Basin-centered asperities in great subduction zone earthquakes: A link between slip, subsidence, and subduction erosion?
Life and death of the resurrection plate: Evidence for its existence and subduction in the northeastern Pacific in Paleocene-Eocene time
Late Holocene earthquakes on the Toe Jam Hill fault, Seattle fault zone, Bainbridge Island, Washington
Field and laboratory data from an earthquake history study of the Toe Jam Hill Fault, Bainbridge Island, Washington
Life and death of the Resurrection Plate
Location, structure, and seismicity of the Seattle fault zone, Washington: Evidence from aeromagnetic anomalies, geologic mapping, and seismic-reflection data
Geologic map and database of the Roseburg 30' x 60' quadrangle, Douglas and Coos Counties, Oregon
Reconnaissance geologic map of the Dixonville 7.5' quadrangle, Oregon
Northward migration of the Cascadia forearc in the northwestern U.S. and implications for subduction deformation
Shaded-relief and color shaded-relief maps of the Willamette Valley, Oregon
Science and Products
Maps Showing Inundation Depths, Ice-Rafted Erratics, and Sedimentary Facies of Late Pleistocene Missoula Floods in the Willamette Valley, Oregon
A revised dislocation model of interseismic deformation of the Cascadia subduction zone
Basin-centered asperities in great subduction zone earthquakes: A link between slip, subsidence, and subduction erosion?
Life and death of the resurrection plate: Evidence for its existence and subduction in the northeastern Pacific in Paleocene-Eocene time
Late Holocene earthquakes on the Toe Jam Hill fault, Seattle fault zone, Bainbridge Island, Washington
Field and laboratory data from an earthquake history study of the Toe Jam Hill Fault, Bainbridge Island, Washington
Life and death of the Resurrection Plate
Location, structure, and seismicity of the Seattle fault zone, Washington: Evidence from aeromagnetic anomalies, geologic mapping, and seismic-reflection data
Geologic map and database of the Roseburg 30' x 60' quadrangle, Douglas and Coos Counties, Oregon
Reconnaissance geologic map of the Dixonville 7.5' quadrangle, Oregon
Northward migration of the Cascadia forearc in the northwestern U.S. and implications for subduction deformation
Shaded-relief and color shaded-relief maps of the Willamette Valley, Oregon
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government