When a volcano erupts, stuff comes out of the ground. Most of the time, it isn't much stuff (and by "stuff", we're talking lava, ash, volcanic gases in varying proportions). But sometimes it's a lot.

Why is Christian Science in our name? Our name is about honesty. The Monitor is owned by The First Church of Christ, Scientist, and we’ve always been transparent about that. The church publishes the ...

Last week’s earthquake in western Montana was the strongest earthquake in the region in 60 years. An initial quake set off 10 smaller earthquakes, with people as far west as Seattle and as far north ...

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week's contribution is from Dan Dzurisin, geologist with the U.S.

According to new research, the colossal caldera of the Yellowstone supervolcano was created by not one, but two powerful and closely spaced eruptions that took place some 630,000 years ago. The super ...

A giant, undiscovered volcano may exist beneath the waters surrounding a group of small islands off Alaska’s Aleutian chain, according to the American Geophysical Union. John Lyons/USGS. A giant and ...