• Pavlof volcano alert raised after rise in long-period earthquakes, Alaska

    A notable increase in seismic activity was detected at Pavlof volcano on the Alaska Peninsula on January 14, 2026, prompting the Alaska Volcano Observatory (AVO) to raise the alert level to Advisory and the Aviation Color Code to Yellow. No surface activity or eruptive changes were observed, and seismicity has since declined to background levels.

  • Slow eruption of lava at Pavlof volcano, Alaska

    Pavlof Volcano continues to erupt from the active vent on its east flank, just below the summit. The Aviation Color Code remains at Orange. Previous eruptions of Pavlof indicate that the level of unrest can change quickly and the progression to more significant eruptive activity can occur with little or no warning.

  • Increased seismicity at Pavlof volcano, Alaska

    Seismic activity at Pavlof volcano has increased on September 21, 2020, prompting the Alaska Volcano Observatory (AVO) to raise the Aviation Color Code to Yellow and Alert Level to Advisory. While this does not necessarily mean that an eruption is likely or…

  • Increased seismicity, alerts raised for Pavlof volcano, Alaska

    Seismic activity at Pavlof volcano, Alaska has increased over the past several days, forcing the Alaska Volcano Observatory to raise the Alert Level to Advisory and the Aviation Color Code to Yellow at 20:43 UTC on December 28, 2019. Pavlof is a snow- and…

  • Small explosion signals at Pavlof volcano, alerts raised, Alaska

    Small explosion signals from Pavlof volcano have been detected on the infrasound network located at Sand Point and on the local seismic network on October 19, 2019. It is unknown if the explosions produced any volcanic ash, but their small size suggests any hazard…

  • Vigorous steam plume at Pavlof volcano, alerts raised, Alaska

    Low-frequency seismic tremor and vigorous steam plume have been observed at Pavlof volcano, Alaska over the past 2 days, forcing the Alaska Volcano Observatory (AVO) to raise the Aviation Color Code and Alert Level to Yellow/Advisory on May 15, 2019. The…