Authorities reported tephra fall—including ash, Pele’s hair, and larger fragments—across Hawaiʻi Volcanoes National Park.

USGS released its most detailed national geologic map, offering layered views of geology beneath the Earth’s surface across the lower 48 states. The Cooperative National Geologic Map integrates data ...

Fallout of the particles, as big as footballs, were reported at overlooks in the Hawai'i Volcanoes National park.

Hawaii's Kīlauea volcano eruption sent lava 1,000 feet into the air and forced officials to close parts of the national park.

Hawaii's Kilauea volcano was erupting in its 43rd episode on Tuesday, prompting warnings from the U.S. Geological Survey and National Weather Service. A Volcanic Activity Notice issued by the USGS at ...

The potential for catastrophic earthquakes to rock nearly every corner of the United States is becoming a growing threat, according to the U.S. Geological Survey. By analyzing the newest seismic ...