Printer friendly versionAVO/USGS Volcanic Activity Notice
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE
Monday, June 26, 2017, 6:48 PM AKDT
Alaska Volcano Observatory
N 53 deg 55 min W 168 deg 2 min
492 ft (150 m)
Volcanic Activity Summary: Seismicity for the eruption at Bogoslof volcano at 00:45 UTC on June 27 (16:45 AKDT on June 26) remained elevated until 00:59 UTC (16:59 AKDT) and has since declined to background levels. The eruption produced a volcanic cloud moving northeast with an estimated altitude of 25,000 ft asl by satellite data, and a pilot reported a visible cloud at 22,000 ft asl. Given the lower altitude of the volcanic cloud and short duration of the explosion, the Aviation Color Code remains ORANGE and Volcano Alert Level WATCH.
Recent eruptive episodes have produced multiple short-duration explosions interspersed with minutes to hours of inactivity between events, and future explosions could occur with little to no warning. AVO will continue to monitor seismic and infrasound data from nearby islands, as well as lightning data from the World Wide Lightning Location Network for signs of renewed activity.
[Volcanic cloud height] 25,000 ft asl estimated by satellite & pilot report
[Other volcanic cloud information] Cloud moving towards northeast
[Lava flow/dome] N/A
[Lava flow] N/A
The SIGMET warning message for aviation, issued by the National Weather Service Alaska Aviation Weather Unit currently is in effect up to 25,000 ft above sea level. Status of the ash cloud forecast can be found at their website at http://aawu.arh.noaa.gov/
Michelle Coombs, Scientist-in-Charge, USGS
firstname.lastname@example.org (907) 786-7497
Jeff Freymueller, Coordinating Scientist, UAF
email@example.com (907) 322-4085
The Alaska Volcano Observatory is a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys.