Senior Geologist
Expertise:
Geologic Hazard Assessment
Engineering Geology
Probabilistic Seismic Hazard
Over the past 20 years, Mr. Wells has managed and participated in a variety of studies to evaluate geologic and seismologic hazards around the world. For geologic hazard studies, he evaluated surface fault rupture, liquefaction, differential compaction, landsliding, flooding, and ground shaking. Investigative techniques included interpretation of aerial photographs and satellite imagery, field mapping, geomorphologic analysis, aerial reconnaissance, drilling and trenching to evaluate subsurface conditions, analyzing seismicity data and the effects of historical earthquakes, evaluating geotechnical boring data, and reviewing pertinent literature. For probabilistic and deterministic seismic hazard studies, Mr. Wells identified and characterized seismic sources, including crustal faults, blind faults, and subduction-related earthquake sources. Work included assessment of fault activity and slip rate, recurrence rates for regional source zones and subduction sources, and maximum earthquake magnitudes. As part of this work, he has developed extensive contacts with the U.S. Geological Survey, California Division of Mines and Geology, and university personnel throughout California and the United States.
Education:
- M.S., Geology, San Diego State University, 1987
- B.A., Geology, Hamilton College, Clinton, New York, 1982
Registration:
- Professional Geologist, CA, 5439, 1992
- Certified Engineering Geologist, CA, 2120, 1998
Affiliations:
American Geophysical Union
Association of Engineering Geologists
Earthquake Engineering Research Institute
Geological Society of America
Seismological Society of America
Northern California Geological Society