The Hawaiian Volcano Observatory is part of the U.S. Geological Survey, the science agency of the U.S. Department of Interior. Our job is to obtain and share science-based information about the ...

The National Volcano Early Warning and Monitoring System, or NVEWS, was first authorized by congress in 2019 to be established within the United States Geological Survey. NVEWS serves as a critical ...

Popocatépetl emerged in the crater of other volcanoes in its current form more than 20,000 years ago and has been active since 1994, spewing plumes of smoke, gas and ash more or less daily. The ...

(CNN) — Here's some background information about volcanoes, mountains that open downward to a reservoir of molten rock. Facts: More than 80% of the Earth's surface, both above and below sea level, is ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. HAWAII COUNTY, Hawaii — The most active ...

Here’s a look at volcanoes, mountains that open downward to a reservoir of molten rock. More than 80% of the Earth’s surface, both above and below sea level, is of volcanic origin. Lava is molten rock ...