Mount Rainier Eruption Could Wipe Out Nearby Cities โ With Mud According to National Geographic, Mount Rainier might be the most dangerous volcano in the US. The volcano is often overshadowed by Yellowstoneโs โsupervolcanoโ hype, or by its neighbor, Mount St. Helens, which erupted in 1980. While an eruption at Yellowstone has the potential to be catastrophic, a major eruption hasnโt happened in 630,000 years and might not even happen again. And while [โฆ] Brains Tanner Blake | September 8, 2022 5 Comments