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PBS News Hour

Looking back at Mount St. Helens’ eruption 45 years later

Season 2025 Episode 138 | 4m 33s

It was 45 years ago today when Mount St. Helens erupted, triggering the biggest landslide in Earth’s recorded history and creating an ash cloud that reached across the country. John Yang looks back at the deadliest and most destructive volcanic eruption in U.S. history with Steve Olson, author of “Eruption: The Untold Story of Mount St. Helens.”

Major corporate funding for the PBS News Hour is provided by BDO, BNSF, Consumer Cellular, American Cruise Lines, and Raymond James. Funding for the PBS NewsHour Weekend is provided by Consumer Cellular and Cunard Cruise Line. For a complete list of funders for the PBS NewsHour and PBS NewsHour weekend, click here.
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