• Volcanoes, including Mt. Hood, can go from dormant to active quickly

    A new study suggests that the magma sitting 4-5 kilometers beneath the surface of Oregon's Mount Hood has been stored in near-solid conditions for thousands of years, but that the time it takes to liquefy and potentially erupt is surprisingly short – perhaps

  • Persistent strombolian activity at Etna's New Southeast Crater

    Mild, persistent strombolian activity is continuing at Etna's New Southeast Crater (NSEC) from the same two eruptive vents within the crater that have been active over the past few days.

    Lava emission continues from an effusive vent located within the

  • Changed landscape around Sinabung volcano, Indonesia

    The following images show how much of the landscape around Sinabung volcano, Indonesia, has changed in last 9 months. The ash has coated nearby villages, as well as the coffee, chili pepper, and other plantation clustered at the foot of the

  • New lava dome and powerful eruption of Shiveluch, Kamchatka

    Another powerful eruption of Kamchatkan Shiveluch volcano occurred late on February 6 (early morning February 7 in Kamchatka). Tokyo VAAC spoted an ash plume drifting at approximately 9 km (27 000 ft) altitude and more than 300 km northwest of the