To put the depth of the crater into perspective, the Perrine Bridge in Twin Falls is only about 180 feet taller when comparing the blast site's floor to the rim. The oldest known crater in Idaho was caused by an asteroid 600 million years ago and shares a border with Montana.
In case you haven't heard, the USGS has reported earthquake swarms near Mt. St. Helens over recent weeks. Have you ever wondered how Twin Falls would be affected if Mt. St. Helens erupted again? The best way to estimate this is to look back at what happened in 1980.
There is a massive volcanic caldera bubbling and boiling beneath Yellowstone National Park in Wyoming which is responsible for most of the stunning geysers there, including Ol’ Faithful. What you may not know is that because of continental drift, this super volcano used to be directly beneath the Magic Valley. Researchers now believe this caldera is a “Super Volcano” that erupts about every 600,00