Alaska, largely unspoiled wilderness, looks like something out of The Lord of the Rings.

Kilauea, one of the world’s most active volcanoes, has been erupting on and off for nearly two months since it burst to life ...

The Yellowstone Seismic Network is designed to record ground shaking due to earthquakes. But earthquakes aren’t the only ...

The last time it erupted was in 1992, and before that, 1953. Scientists at the Alaska Volcano Observatory have reported ...

Video by USGS USGS HAWAIIAN VOLCANOES OBSERVATORY Lava is seen fountaining in Halemaumau crater this morning in this screenshot from a live stream. 2 /2 USGS HAWAIIAN VOLCANOES OBSERVATORY Lava is ...

One of the most active volcanoes in the world is Kilauea on the Big Island of Hawaii. It has been erupting on and off since Dec. 23.

Mount Spurr is part of the Ring of Fire, located in southern Alaska. The mountain is a stratovolcano, which means it has ...

Lava fountains from the north vent have reached 300 to 400 feet, feeding multiple lava streams onto the crater floor between ...

The program responds to volcanic eruptions internationally, collecting data and providing assistance to affected communities.

The latest episode of the ongoing Halemaʻumaʻu eruption at Kilauea volcano ended at 9:18 a.m. HST on Thursday, February 20, ...

Authorities near Sicily's Mount Etna are bracing to control an influx of visitors this weekend, attracted by a two-week flow ...