Volcano Reports

AVO Great Sitkin YELLOW/ADVISORY - No explosive activity observed. Nothing observed in seismic or satellite data.

USGS Volcano Current Alerts - Sun, 01/20/2019 - 14:32
Jan 20, 2019 20:16 - Unrest continues at Great Sitkin volcano. No unusual activity was observed in seismic data or mostly cloudy satellite views over the past 24 hours. No explosive activity was detected on a regional infrasound array 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.
Categories: Volcano Reports

AVO Cleveland ORANGE/WATCH - Unrest continues. Strongly elevated surface temperatures observed at summit.

USGS Volcano Current Alerts - Sun, 01/20/2019 - 14:32
Jan 20, 2019 20:16 - Unrest continues at Cleveland. Strongly elevated surface temperatures were observed in several satellite images over the past 24 hours. This is consistent with the presence of a growing lava dome first observed in the summit crater on January 12. No explosions have been detected since January 9, although the presence of the new lava dome may increase the likelihood of explosive activity at the volcano. Most explosions have a short duration and only present a hazard to aviation in the immediate vicinity of the volcano. Larger explosions that present a more ...
Categories: Volcano Reports

AVO Veniaminof YELLOW/ADVISORY - Unrest continues. Elevated surface temperatures observed in satellite data.

USGS Volcano Current Alerts - Sun, 01/20/2019 - 14:32
Jan 20, 2019 20:16 - Unrest at Veniaminof continues. Seismic tremor remains at low levels. Moderately elevated surface temperatures were observed in several clear satellite images over the past 24 hours, mostly likely associated with the presence of a cooling lava flow. A weak steam plume was observed in web camera views today. Eruptive activity consisting of lava effusion and/or ash emissions could resume at any time without significant seismic precursors. Veniaminof volcano is monitored with a local real-time seismic network, which will typically allow AVO to detect changes in unrest ...
Categories: Volcano Reports

AVO Great Sitkin YELLOW/ADVISORY - No explosive activity observed. Steam plume observed in or satellite data today.

USGS Volcano Current Alerts - Sat, 01/19/2019 - 13:32
Jan 19, 2019 19:02 - Unrest continues at Great Sitkin volcano. No unusual activity was observed in seismic data today. A steam plume was observed in satellite data over the past 24 hours. No explosive activity was detected on a regional infrasound array 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.
Categories: Volcano Reports

AVO Cleveland ORANGE/WATCH - Unrest continues. Strongly elevated surface temperatures observed at summit.

USGS Volcano Current Alerts - Sat, 01/19/2019 - 13:32
Jan 19, 2019 19:02 - Unrest continues at Cleveland. Strongly elevated surface temperatures were observed in several satellite views over the past 24 hours. This is consistent with the presence of a growing lava dome first observed in the summit crater on January 12. No explosions have been detected since January 9, although the presence of the new lava dome may increase the likelihood of explosive activity at the volcano. Most explosions have a short duration and only present a hazard to aviation in the immediate vicinity of the volcano. Larger explosions that present a more widespread ...
Categories: Volcano Reports

AVO Veniaminof YELLOW/ADVISORY - Unrest continues. Elevated surface temperatures observed in satellite data.

USGS Volcano Current Alerts - Sat, 01/19/2019 - 13:32
Jan 19, 2019 19:02 - Unrest at Veniaminof continues. Seismic tremor remains at low levels. Moderately elevated surface temperatures were observed in several clear satellite images over the past 24 hours. A possible weak steam plume was observed in web camera views today. Eruptive activity consisting of lava effusion and/or ash emissions could resume at any time without significant seismic precursors. 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 eruption. ...
Categories: Volcano Reports

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