Mount St. Helens: May 18, 1980

USGS · 1.7M views · 2010 · 7:31

Open on YouTube

Geology & earth scienceother

Why the open web links it

USGS scientists describe the events and impact of the 1980 Mount St. Helens eruption, a pivotal moment in volcanology and disaster history.

Linked by 4 independent sites, 2 of them widely read in the 2026-10 crawl of the open web, including usgs.gov, cuny.edu, libretexts.org, fieldofscience.com, junglecity.com.