Live Panorama of Kīlauea Caldera from HVO Observation Tower

  • AVO Great Sitkin YELLOW/ADVISORY - Nothing unusual activity observed in seismic or satellite data.
    on January 1, 1970 at 12:00 am

    Feb 20, 2019 20:57 - Nothing significant was observed in mostly cloudy satellite views of the volcano over the past day. No unusual activity detected on local seismic stations. No unrest or unusual activity noted on a nearby regional infrasound array located on Adak Island. Great Sitkin volcano is monitored with a local real-time seismic network, which will typically allow AVO to detect changes in unrest that may lead to an explosive eruption. Rapid detection of an ash-producing eruption would be accomplished using a combination of seismic, infrasound, lightning, and satellite data. […]

  • AVO Cleveland ORANGE/WATCH - Weakly elevated surface temperatures in satellite data.
    on January 1, 1970 at 12:00 am

    Feb 20, 2019 20:57 - Weakly elevated surface temperatures observed in mostly cloudy satellite data over the past 24 hours. No activity was detected in regional seismic or infrasound data. The most recent explosion of Cleveland Volcano occurred on January 9, 2019. Cleveland explosions are normally short duration and only present a hazard to aviation in the immediate vicinity of the volcano. Larger explosions that present a more widespread hazard to aviation are possible, but are less likely and occur less frequently. Local seismic and infrasound data at Cleveland have been unavailable ... […]

  • AVO Veniaminof YELLOW/ADVISORY - Seismicity remains low. Weakly elevated surface temperatures in satellite data.
    on January 1, 1970 at 12:00 am

    Feb 20, 2019 20:57 - Satellite views over the past data showed weakly elevated surface temperatures consistent with continued cooling of the lava flows. No activity observed in partially cloudy web camera images. The level of seismicity remains low. It remains possible for eruptive activity consisting of lava effusion, ash emissions or both to resume at any time without significant precursory seismic events. Veniaminof volcano is monitored with a local real-time seismic network, which will typically allow AVO to detect changes in unrest that may lead to a more significant explosive ... […]

  • HVO Kilauea YELLOW/ADVISORY - Low activity levels; no lava at the surface, low gas emission rates.
    on January 1, 1970 at 12:00 am

    Feb 19, 2019 22:20 - Activity Summary: Kīlauea Volcano is not erupting. Rates of seismicity, deformation, and gas emissions have not changed significantly over the past week. Observations: Geophysical and geologic data indicate no significant change with volcanic activity. Low rates of seismicity continue across the volcano, with earthquakes occurring primarily in the summit and south flank regions. GPS stations and tiltmeters continue to show motions consistent with refilling of the deep East Rift Zone. Sulfur dioxide emission rates from the summit and from Puʻu ʻŌʻō remain low. ... […]

  • CVO Cascade Range GREEN/NORMAL - All volcanoes are at normal levels.
    on January 1, 1970 at 12:00 am

    Feb 15, 2019 20:43 - Activity Update: All volcanoes in the Cascade Range of Oregon and Washington are at normal background levels of activity. These include Mount Baker, Glacier Peak, Mount Rainier, Mount St. Helens, and Mount Adams in Washington State; and Mount Hood, Mount Jefferson, Three Sisters, Newberry, and Crater Lake in Oregon. Recent Observations: Seismicity and other monitoring results were at background levels at Cascade Range volcanoes during the past week. […]