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Cascade Volcanoes

February 17, 2017 @ 6:00 pm – 8:30 pm
Dinner & Program: $19; Program only: $5. (Museum members receive $5 discount.)

Volcanoes in the Cascades – Are They a Threat?

Mt. Adams

Mt. Adams

Iconic snow-capped volcanic peaks form the backbone of the Cascade Range from southern British Columbia to northern California.  Mount St. Helens captured our attention in 1980 and again in 2004, but is Mount St. Helens the only active volcano in the Cascades?  Should we be concerned about eruptions at other Cascade volcanoes in the future?  What are the specific threats we might face if Mount St. Helens or another Cascade volcano erupts again?  Is there a connection between earthquakes and volcanic eruptions?  What can we do to prepare for any future eruptions in the Cascades?

Join us Friday, February 17 as Dr. Thomas Pierson leads us on a virtual guided tour through the Cascades, looking at the eruption potential of these magnificent volcanoes, with a special focus on southern Washington and northern Oregon.


A pre-program dinner begins at 6 pm. The menu includes: spinach, sausage and cheese stuffed Portobello mushrooms, sautéed broccolini, roasted rosemary potatoes, rolls, and dessert.


Cost for the dinner and program is $19. The program only is $5. Museum members receive a $5 discount. Tickets must be purchased by Wednesday, February 15 by calling 541-296-8600 ext. 201.


Dr. Thomas Pierson

Dr. Thomas Pierson

Dr. Tom Pierson is the senior research scientist at the USGS Cascades Volcano Observatory in Vancouver, Washington, where his investigations focus mainly on volcano hazards involving flooding, lahars (mudflows), and landslides–processes associated with volcanic eruptions directly, with post-eruption processes occurring in volcanically disturbed watersheds, and with weakened volcanic structures during times unrelated to eruptive activity.  Since starting with the USGS in 1981, disaster responses and research projects have taken him beyond the Cascades to restless volcanoes in Alaska, Japan, the Philippines, New Zealand, Ecuador, Colombia, Chile, and Mexico.  He is especially interested in interpreting hazards information from volcanic deposits and in educating emergency management officials and the public about volcanic hazards.  Tom has MS and PhD degrees in geology from the University of Washington, and he is an adjunct professor of geology at Portland State University and a licensed geologist in the State of Washington.