Registration is open for a free Aug. 18 webinar on Tracy Arm and the growing threat of landslides in Alaska.
Presenters include state seismologist Mike West, director of the Alaska Earthquake Center, a research professor at the University of Alaska Fairbanks Geophysical Institute.
The webinar will explore the Tracy Arm collapse and place it into the broader context of changing environmental conditions, evolving coastal landslide risks and what they may mean for communities, residents and visitors. Register online via Zoom at: https://alaska.zoom.us/meeting/register/L9y6Rn1rTIOpkqmAzOVhbg#/registration.
A mountainside collapse in Tracy Arm in Southeast Alaska on Aug. 10, 2025, generated a tsunami that surged up the opposite side of the fjord higher than the top floor of One World Trade Center. Just 12 hours earlier, cruise ships had left the same area. Boats further down the fjord encountered smaller waves as the tsunami propelled through the region at speeds that exceeded 100 miles an hour.
What happened in Tracy Arm is not an isolated incident.
Researchers note that as glaciers retreat and weather and climate patterns continue to change, coastal landslides have become an increasingly important situation in Alaska.
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