• Earthquake swarm under Mount Hood volcano, Oregon

    The Cascades Volcano Observatory (CVO) has detected an earthquake swarm in the Mount Hood area, Oregon on June 5, 2021. The swarm continued into June 6 when the activity started to quiet down. The last known eruption of this volcano took place in 1865 and 1866 (VEI…

  • The Weekly Volcanic Activity Report: May 26 – June 1, 2021

    New activity/unrest was reported for 5 volcanoes from May 26 to June 1, 2021. During the same period, ongoing activity was reported for 14 volcanoes. New activity/unrest: Great Sitkin, Andreanof Islands (USA) | Krakatau, Indonesia | Nyiragongo, DR Congo |…

  • Lahar advisory for Taal and Pinatubo volcanoes, Philippines

    Due to potentially high-volume rainfall produced by Tropical Storm "Choi-wan" — known as Dante in the Philippines" — and its trajectory, DOST-PHIVOLCS has issued lahar advisories for Taal and Pinatubo volcanoes on June 2, 2021. Based on DOST-PAGASA…

  • The Weekly Volcanic Activity Report: May 19 – 25, 2021

    New activity/unrest was reported for 3 volcanoes from May 19 – 25, 2021. During the same period, ongoing activity was reported for 18 volcanoes. New activity/unrest: Great Sitkin, Andreanof Islands (USA) | Manam, Papua New Guinea | Nyiragongo, DR Congo. Ongoing…