The Day the Sky Went Dark: Mount Pinatubo Erupts
On June 15, 1991, Mount Pinatubo exploded in the second-largest volcanic eruption of the 20th century — and a daring evacuation saved thousands of lives.
Tagged: geology
When a Mountain Blew Its Top: The 1980 Mount St. Helens Eruption
On May 18, 1980, a magnitude 5.1 earthquake triggered the eruption of Mount St. Helens, the most disastrous volcanic event in U.S. history, killing 57 people.