Live Panorama of Kīlauea Caldera from HVO Observation Tower

  • AVO Great Sitkin YELLOW/ADVISORY - Low-level unrest continues. No activity observed in satellite data.
    on January 1, 1970 at 12:00 am

    Oct 18, 2018 21:37 - Low-level unrest continues at Great Sitkin volcano. Seismicity remains above background levels. No activity was observed in regional infrasound data or in mostly cloudy satellite images during the past day. 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 YELLOW/ADVISORY - Unrest continues. No activity observed in monitoring data.
    on January 1, 1970 at 12:00 am

    Oct 18, 2018 21:37 - Low-level unrest continues at Cleveland volcano. Nothing significant has been detected in seismic and regional infrasound data. No activity observed in partly cloudy satellite views of the volcano over the past day. Cleveland volcano is monitored by only two seismic stations, which restricts AVO's ability to detect precursory unrest that may lead to an explosive eruption. Rapid detection of an ash-producing eruption may be possible using a combination of seismic, infrasound, lightning, and satellite data. The web camera, one seismic station, and the local infrasound ... […]

  • AVO Semisopochnoi YELLOW/ADVISORY - Seismic unrest continues. No activity in satellite data.
    on January 1, 1970 at 12:00 am

    Oct 18, 2018 21:37 - Unrest continues at Semisopochnoi volcano. Seismicity remains elevated and above background levels. No significant volcanic activity was observed in partly cloudy satellite data or detected by regional infrasound sensors over the past day. Semisopochnoi is monitored with an on-island seismic network, and remotely by satellite and lightning sensors. An infrasound array on Adak Island may detect explosive emissions from Semisopochnoi with a 13 minute delay if atmospheric conditions permit. […]

  • AVO Veniaminof ORANGE/WATCH - Unrest continues. Elevated surface temperatures and plume observed in satellite data.
    on January 1, 1970 at 12:00 am

    Oct 18, 2018 21:37 - Unrest continues at Veniaminof volcano. Seismicity is above background levels and is characterized by low-level continuous tremor. Satellite and web camera views of the volcano showed elevated surface temperatures. A robust steam plume was observed in web-camera and satellite images extending to the NNE about 19 miles (30 km). No significant ash emissions have been observed or reported. 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 an explosive eruption. Rapid ... […]

  • HVO Kilauea YELLOW/ADVISORY - Low activity levels across the volcano, no lava at the surface.
    on January 1, 1970 at 12:00 am

    Oct 17, 2018 05:03 - Activity Summary: Kīlauea Volcano is not erupting. Rates of seismicity, deformation, and gas release have not changed significantly over the past week. Deformation signals are consistent with refilling of the middle East Rift Zone. Observations: HVO monitoring during the past week shows low rates of seismicity at the summit and East Rift Zone (ERZ). Earthquakes continue to occur primarily at Kīlauea's summit area and south flank (magnitude-2.5 was the largest) with continued small aftershocks of the magnitude-6.9 quake on May 4, 2018. Seismicity remains low in the ... […]