Across an expanse of the Nevada desert, in the center of the state, lies a volcanic crater reaching 3,280 feet in width and 427 feet in depth. It is now extinct — its last-known eruption ...

Doane saw only one way to explain the void. "The great basin," he wrote, "has been formerly one vast crater of a now extinct volcano." The lieutenant was right: Yellowstone is a volcano ...

A 2022 satellite photo shows smoke rising from a caldera on Tofua, highlighting the "looming threat" of the volcanic island.

This effect is not occasioned by the Upas tree, but by an extinct volcano near Batar, called Guava Upas. From the old crater and the adjoining valley is exhaled carbonic gas, such as often ...

The cinder cones in Haleakala Crater are as young as 800 years ... West Molokai and Kahoolawe also were short-lived volcanoes, going extinct about 1 million years ago. East Molokai and West ...

Arrive at Crater Lake on a sunny summer’s day and ... That’s because this 11-mile roundtrip slog up the core of an extinct volcano has a few hundred vertical feet of Class 3 climbing ...

A huge volcano in Alaska appears to be "moving closer ... Those eruptions both took place at Crater Peak, a flank vent about 2 miles (3.2 km) from the stratovolcano's summit.

The Philippine Institute of Volcanology and Seismology released time-lapse footage on Friday showing an early morning ash emission from Kanlaon Volcano’s summit crater. According to PHIVOLCS, the ash ...

VIENTIANE, Feb. 19 (Xinhua) -- Authorities in southern Laos' Champasak province are working to develop facilities around an extinct volcano in ... meter path around the crater.