Relative size of eruptions from Yellowstone, WY; Long Valley, CA; N...
By Volcano Hazards Program
2012 (approx.)
Detailed Description
Relative size of eruptions from Yellowstone, WY; Long Valley, CA; Novarupta, AK; Mount St. Helens, WA, and other large volcanic events.
Sources/Usage
Public Domain.
Adapted from Fierstein, 2012, National Park Service