Monthly Program: Lavas and mudflows and ash—oh my!—Volcanoes in the Pacific Northwest

WHEN: Tue, 12-May-2026 / 6:30 pm - 8:30 pm

ONC-PDX Monthly Meeting
“Lavas and mudflows and ash—oh my! — Volcanoes in the Pacific Northwest”

When: Tuesday May 12, 6:30pm – 8:30pm.
Where: Multnomah Arts Center (room TBA)

* Also on Zoom: Link sent to members by email.

6:30 pm: Potluck. Bring a dish to share, eating utensils, and a non-alcoholic drink if you wish
7:15 pm: Short Club Meeting
7:30 pm-8:30 pm: Program: “Lavas and mudflows and ash—oh my! — Volcanoes in the Pacific Northwest”

About the program:

“Lavas and mudflows and ash—oh my! — Volcanoes in the Pacific Northwest”

In this presentation, Seth Moran from the Cascades Volcano Observatory explores volcanic processes associated with volcanic eruptions and their aftermath, provides insights on the greatest threats posed by the Cascades volcanoes, and reveals how our regional volcanoes are monitored and why. The great 1980 eruption of Mount St. Helens fundamentally changed how scientists viewed volcanic eruptions. The four decades since have seen significant advancements in our understanding of volcanic histories, processes, hazards, monitoring capabilities, and the role that scientists have in communicating with governmental agencies and the public.

Seth Moran is a seismologist and the current Scientist-in-Charge at the U.S. Geological Survey’s Cascades Volcano Observatory in Vancouver, Washington.  Seth has been with the USGS since 1997, starting off as a research seismologist at the Alaska Volcano Observatory in 1997 before moving to CVO in 2003 just one year before start of the 2004-2008 eruption of Mount St. Helens.  He was worked on volcanoes in Washington, Oregon, Alaska, Hawai’i, Ecuador, and Indonesia, and has also spent a fair amount of time thinking about eruption response and interactions between the scientific and emergency-response communities during crises.

Please note, we will be unable to record this so be there or be square.