The Alaska Volcano Observatory increased the alert level at the remote Kupreanof Volcano on the Alaska Peninsula.

The Alaska Volcano Observatory raised Kupreanof Volcano's alert level to Advisory and its aviation color code to Yellow on ...

Every day, blocks of cooling rock tumble from the edges of a growing lava dome near the top of Great Sitkin Volcano, a ...

A massive ‘megatsunami’ wave created when part of an Alaskan mountain crumbled into the sea is the second tallest ever recorded – and a reminder of the risks posed by melting glaciers, say scientists.

Near-constant activity continues on the volcano in Russia. Shivelyuch (also called Shiveluch), the most northerly active ...

Nearly five years after magma first broke through the floor of its summit crater, Great Sitkin volcano is still pushing lava ...

The museum is hosting events throughout the month ranging from an exploration of human evolutionary history to a celebration ...

A circular scar on Alaska’s face speaks to an event that may have contributed to the fall of societies on the far side of the world. Two thousand years ago, Alaska’s Mount Okmok volcano spewed ash ...

A circular scar on Alaska’s face speaks to an event that may have contributed to the fall of societies on the far side of the world. Two thousand years ago, Alaska’s Mount Okmok volcano spewed ash ...

Alaska’s volcano experts no longer expect an eruption anytime soon from Mount Spurr, the closest active volcano to Anchorage. On Wednesday, the Alaska Volcano Observatory formally lowered the alert ...

When a volcano is dormant, it typically doesn't tend to make much noise. However, the Iliamna Volcano in Alaska is defying what we thought we knew about volcanos by rumbling despite being marked ...

Steam rising from the intracaldera cinder cone at Veniaminof volcano in the waning stages of the 1983 to 1984 eruption.M.E. Yount, U.S. Geological Survey/Wikimedia Commons Volcanoes usually signal an ...