Skip to main content
U.S. flag

An official website of the United States government

James W. Vallance

I supervise the field geology and hydrology group at Cascades Volcano Observatory. My research focuses on postglacial volcanism and hazards at volcanoes such as Mount Rainier and Mount St. Helens in Washington State. I also study the nature and behavior of lahars, floods, avalanches, pyroclastic flows, and dome growth.

Education and Certifications

  • PhD Geology, Michigan Technological University, 1994 

  • MS Geology, Colorado University, Boulder, 1986

  • BA Geology, Colorado University, Boulder, 1980 

Affiliations and Memberships*

  • American Geophysical Union

  • Geological Society of America

Honors and Awards

  • Fellow, Geological Society of America

  • NSERC and NSF postdoctoral fellowships, McGill University, Canada

Science and Products

*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