• Seismic activity under Pelée volcano, Martinique

    Seismic activity continues at slightly above background levels at Martinique's Pelée volcano. From May 28 to June 4, 2021, the L'Observatoire Volcanologique et Sismologique de Martinique (OVSM) registered at least 11 volcanic-tectonic earthquakes of…

  • The Weekly Volcanic Activity Report: June 2 – 8, 2021

    New activity/unrest was reported for 2 volcanoes from June 2 to 8, 2021. During the same period, ongoing activity was reported for 18 volcanoes. New activity/unrest: Gareloi, United States | Semisopochnoi, Aleutian Islands (USA). Ongoing activity: Aira, Kyushu…

  • 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 |…