Ranger naturalist George D. Marler monitoring of changes in hydrothermal activity in Yellowstone was useful in understanding ...

Residents and visitors are on alert after Hawaii's Kīlauea volcano entered its fifth eruptive episode since December on Wednesday.

Kilauea's volcanic activity on Wednesday marked the fifth episode since the latest eruption began in December 2024.

If you ever have the chance to go to Yellowstone National Park, do so in order to see the geysers. Water seeps down into the ...

Yellowstone National Park is noted for the geothermal marvels, but it is the threat below ground that holds the attention.

The greatest supervolcano on Earth, a geological giant with enormous destructive potential and an unmatched promise for ...

Ranger naturalist George D. Marler meticulously documented changes in hydrothermal activity in the geyser basins of ...

Axial Seamount is a young, 30 million-year-old undersea volcano in the Pacific Ocean off the U.S. coast, and it’s expected to ...