Mount Saint Helens Lessons NPR's Howard Berkes reports on what scientists have learned about volcanoes in the 20 years since the eruption of Mt. St. Helens. By watching the explosion and its aftermath in real time, they've learned more about the prediction and behavior of volcanic eruptions. That's led them to re-evaluate the dangers of a volcanically active area of California.
NPR logo

Mount Saint Helens Lessons

Only Available in Archive Formats.
Mount Saint Helens Lessons

Mount Saint Helens Lessons

Mount Saint Helens Lessons

Only Available in Archive Formats.

NPR's Howard Berkes reports on what scientists have learned about volcanoes in the 20 years since the eruption of Mt. St. Helens. By watching the explosion and its aftermath in real time, they've learned more about the prediction and behavior of volcanic eruptions. That's led them to re-evaluate the dangers of a volcanically active area of California.