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Volcano: Bogoslof (VNUM #311300)
Current Volcano Alert Level: WARNING
Previous Volcano Alert Level: WATCH
Current Aviation Color Code: RED
Previous Aviation Color Code: ORANGE
Issued: Monday, August 7, 2017, 10:53 AM AKDT
Source: Alaska Volcano Observatory
Notice Number:
Location: N 53 deg 55 min W 168 deg 2 min
Elevation: 492 ft (150 m)
Area: Aleutians
Volcanic Activity Summary: A significant explosive eruption began at Bogoslof volcano at about 18:00 UTC (10:00 AKDT) on August 7 and is continuing. A pilot report at 18:45 UTC indicates that the ash cloud had reached 32,000 ft asl. Thus, AVO is raising the Aviation Color Code to RED and Alert level to WARNING for Bogoslof volcano.
Winds are currently to the south. Seismic and infrasound data suggest that the ash emissions are continuing.
Recent Observations:
[Volcanic cloud height] 32,000 ft asl estimated by pilot report
[Other volcanic cloud information] Cloud moving towards south
Hazard Analysis:
[Ashfall] None expected OR Trace of ash fallout in Unalaska possible
Current Volcano Alert Level: WARNING
Previous Volcano Alert Level: WATCH
Current Aviation Color Code: RED
Previous Aviation Color Code: ORANGE
Issued: Monday, August 7, 2017, 10:53 AM AKDT
Source: Alaska Volcano Observatory
Notice Number:
Location: N 53 deg 55 min W 168 deg 2 min
Elevation: 492 ft (150 m)
Area: Aleutians
Volcanic Activity Summary: A significant explosive eruption began at Bogoslof volcano at about 18:00 UTC (10:00 AKDT) on August 7 and is continuing. A pilot report at 18:45 UTC indicates that the ash cloud had reached 32,000 ft asl. Thus, AVO is raising the Aviation Color Code to RED and Alert level to WARNING for Bogoslof volcano.
Winds are currently to the south. Seismic and infrasound data suggest that the ash emissions are continuing.
Recent Observations:
[Volcanic cloud height] 32,000 ft asl estimated by pilot report
[Other volcanic cloud information] Cloud moving towards south
Hazard Analysis:
[Ashfall] None expected OR Trace of ash fallout in Unalaska possible
