• The Weekly Volcanic Activity Report: December 6 – 12, 2017

    New activity/unrest was reported for 6 volcanoes between December 6 and 12, 2017. During the same period, ongoing activity was reported for 16 volcanoes. New activity/unrest: Agung, Bali (Indonesia) | Kanlaon, Philippines | Klyuchevskoy, Central Kamchatka (Russia) |…

  • Explosion at Cleveland volcano, ash to 6 km (20 000 feet) a.s.l.

    A new explosion was detected at Cleveland volcano, Alaska at 13:20 UTC on December 13, 2017. AVO raised the Aviation Color Code back to Orange. The explosion produced an eruption cloud that was observed in satellite data to an altitude of 6 km (20 000 feet) a.s.l….