Scientists say they used satellites and other technology to plumb the inner workings of a Bolivian volcano that last erupted 250,000 years ago.

Above the havoc, a cloud of volcanic steam and ash rose 30,000 feet. Eruptions of steam, ash, and tephra continued until June 1917, when the volcano resumed its quiet profile, with minor steam ...

Lava fountains from a fissure in the Northeast Rift Zone of Mauna Loa during the 2022 eruption. It was the first time in 38 ...