… 36 years later
Mount St. Helens, Before the Blast … after
Photograph courtesy U.S. Forest Service
Reports are that Mount st. Helen has awakened with ongoing volcanic activity, and possibly spiking
Today marks the 30th anniversary of the blast, which killed 57 people and leveled hundreds of square miles of pristine old-growth forest.
Before the eruption, the dense forest cover meant there was little light and low wind speeds in the area. But afterward, Swanson said, “you had a very open system … with a layer of volcanic ash over most of it, varying in depth from hundreds of meters to just a few inches.”
MORE MOUNT ST. HELENS COVERAGE • Mount St. Helens Still Highly Dangerous, 30 Years Later • Mount St. Helens Pictures: 30 Years Later • Mount St. Helens Interactive: Rebirth of the Blast Zone • “Mountain With a Death Wish” (1981 National Geographic Magazine Article) • Pictures: America’s Ten Most Dangerous Volcanoes • Mount St. Helens May Erupt for Decades, Scientists Suggest (2007)
Published May 18, 2010