Mount Tambora - The Biggest Eruption in Recorded History. Posted: July 2, 2025 \| Last updated: July 2, 2025. More for You ...

Data from oceans, ice and the air all point to the same thing: rising invisible heat. What experiments are working, and what kinds of trials do we need to stop?

Sunday marks 45 years since Mount St. Helens erupted in Washington state. The deadly eruption happened shortly after 8:30 a.m. on May 18, 1980, following months of small explosions and earthquakes.