Volcanoes are rumbling as scientists monitor earthquakes at Washington's Mount Rainier and Alaska's Iliamna volcano.

The United States Geological Survey (USGS) shows lava fountains shooting up high in the latest episode of an ongoing eruption ...

German soldiers never set foot on the speck of land at the far end of the Aleutian Islands during World War II, but the name ...

A 3.5-magnitude earthquake was reported in Alaska on Sunday (July 6), according to the United States Geological Survey. The ...

A minor, 3.7-magnitude earthquake struck in Southern California on Thursday. It was followed by a larger, 4.3-magnitude quake ...

Mount Rainier is considered an active volcano and has not had a significant eruption in the past 500 years. However, it is ...

Edward R. Landa is an adjunct professor in the Department of Environmental Science and Technology at the University of Maryland-College Park, and a scientist (emeritus) with the US Geological Survey.