This stunning astronaut photo shows the natural beauty of Japan's Aso Caldera — a giant crater-like bowl containing 17 different volcanoes, leftover from major eruptions spanning over 200,000 years.

Geologists say there is no evidence the Apolaki Caldera -- part of an extinct volcano located in the Philippine Sea -- could ...

A 2023 astronaut photo shows off an unusual cranium-like structure appearing to stare up into space from the floor of a large ...

United States Geological Survey (USGS) scientist Mark Stelton (left) and Kenneth Sims, a UW professor of geology and geophysics and a member of the USGS Yellowstone Volcano Observatory, examine a ...

Volcanic activity bubbling away beneath the Yellowstone National Park in the US appears to be on the move. New research shows that the reservoirs of magma that fuel the supervolcano's wild outbursts ...

Hawaii's Mauna Loa, the world's largest active volcano, erupted this week for the first time in almost four decades. When volcanoes erupt, they can have disastrous effects on the environment and the ...

The Absaroka volcanoes were active 53 to 43 million years ago, after the uplift of the Rocky Mountains but before the geologically recent arrival of the Yellowstone hotspot about 2 million years ago.

Many of us who visit Yellowstone and Grand Teton national parks drive through (and stay in) Dubois, on U.S. Highway 26/287. Given the ongoing impacts from the June 2022 flooding in Yellowstone, it is ...

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week's contribution is from Shaul Hurwitz, research hydrologist ...

A lava flow from Hawaii’s Kilauea Volcano enters the ocean near Isaac Hale Beach Park on August 5, 2018. The volcano’s 2018 eruption was its largest in over 200 years. Credits: USGS Hawaii’s Kilauea ...