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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.

*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