Back in January, SFGATE was on the ground in the national park during a previous eruption episode that also rained tephra ...

Hydrothermal activity detected for the first time in the underwater volcano between Tenerife and Gran Canaria. Experts issue warning.

Kilauea volcano erupted Tuesday on Hawaii's Big Island, shooting lava fountains up to 1,000 feet high and sending ash and volcanic debris across nearby communities.

Park rangers are evacuating visitors from the Kīlauea Summit in Hawaiʻi Volcanoes National Park as it is temporarily closed due to hazardous amounts of volcanic rock, ash and glass particles falling ...

An explosive eruption rocked La Soufriere volcano on the eastern Caribbean island of St. Vincent on Friday after the government ordered thousands to evacuate their homes nearby. Experts said the ash ...

Capturing and storing carbon dioxide will be critical to avoiding the worst impacts of ...

Taftan volcano in southeastern Iran rose 3.5 inches over 10 months, signaling that it is waking up after 700,000 years of dormancy.

Far out in the Atlantic Ocean, the Azores rise from the sea as a chain of volcanic islands. Beneath the waves, the volcanic rock creates a maze of cracks, overhangs, and swim-throughs. As divers ...

(Reuters) - The latest bursts of molten rock, ash and toxic gas from Kilauea Volcano on the Big Island of Hawaii are part of an ever changing and still largely mysterious cycle of eruptions that have ...

An undersea volcano erupted off Japan three weeks ago, providing a rare view of the birth of a tiny new island, but experts say it may not last very long. The unnamed undersea volcano, located about ...

Above Wenatchee, spires reveal volcanic history in 44-million-year-old rock. High above the city of Wenatchee, Washington, a group of spires made of a unique type of 44-million-year-old rock tell the ...