A seismologist from Seattle discussed recent volcanic activity across the United States. Here's what you should know.

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

This is the spectacular moment Kilauea Volcano spewed lava fountains as it erupted in Hawaii. Footage shows the fiery eruption, with molten rock spurting from vents in the southwest of Kaluapele ...

The eruption of Kilauea volcano on Hawaii’s Big Island has stayed within the mountain’s summit caldera inside Hawaii Volcanoes National Park. No homes were threatened.

The eruption of Kilauea volcano on Hawaii’s Big Island has stayed within the mountain’s summit caldera inside Hawaii Volcanoes National Park. No homes were threatened.

The eruption of Kilauea volcano on Hawaii’s Big Island has stayed within the mountain’s summit caldera inside Hawaii Volcanoes National Park. No homes were threatened.

An Alaskan volcano that has been inactive for more than 100 years is showing signs of rumbling, according to scientists.

The eruption of Kilauea volcano on Hawaii's Big Island has stayed within the mountain's summit caldera inside Hawaii Volcanoes National Park. No homes were threatened. Stream NBC4 newscasts for ...

Heading to the Pacific Northwest, Skagit Valley in Washington state nabbed second spot. With low air pollution and over 6,000 ...

Lava is erupting from Hawaii's Kilauea volcano for the second straight day. The eruption has stayed within Kilauea's summit caldera inside Hawaii Volcanoes National Park.