Kiss Your Ash Goodbye: The Yellowstone Supervolcano, Part II, A Vulcanology Primer – By Stephanie Osborn

Kiss Your Ash Goodbye: The Yellowstone Supervolcano, Part II, A Vulcanology Primer – By Stephanie Osborn Excerpted from Kiss Your Ash Goodbye: The Yellowstone Supervolcano, © 2018 http://www.stephanie-osborn.com Images in this article are public domain unless otherwise noted. How many supervolcanoes are there in North America?

There are ~170 active volcanos in the United States of America, most in Alaska and Hawaii, though there are quite a few along the West Coast states.

There are only an e...