Axial Seamount: The Hidden Active Volcano in the Pacific Northwest

Bill Chadwick

Hatfield Marine Science Center, Oregon State University

Axial Seamount is an active submarine volcano located ~300 miles offshore Oregon and about a mile below the ocean surface. It has erupted 3 times in the last 30 years, making it the most active volcano in the Pacific Northwest (even though you can't see it!). It is monitored in real-time by seafloor instruments connected to a cabled observatory. Data from that monitoring network suggest that the volcano is building toward its next eruption. This talk will describe the most recent monitoring data and its implications for forecasting the next eruption.

Please join us at:

Worthy Brewing (eastside location)

In the Hop Mahal Room

5:30 pm social hour

7:00 pm presentation

COGS talk are free and open to the public -- all are welcome! Please join us for the social hour before the presentation.

All presentations are also live-streamed through Zoom. There will be a registration link at the top of this page as we get closer to the date of this presentation.