|(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)|
|(3) Volcano:||Bogoslof (VNUM #311300)|
|(4) Current Color Code:||ORANGE|
|(5) Previous Color Code:||ORANGE|
|(6) Source:||Alaska Volcano Observatory|
|(7) Notice Number:|
|(8) Volcano Location:||N 53 deg 55 min W 168 deg 2 min|
|(10) Summit Elevation:||492 ft (150 m)|
|(11) Volcanic Activity Summary:||Low amplitude seismic tremor from Bogoslof Volcano was detected in seismic data beginning at about 20:29, June 5 UTC (12:29 AKST) and has since decreased to background levels. A USF&WS vessel in the vicinity reported vigorous steaming and a "white plume" rising several thousand feet above sea level. This cloud was too small to be observed in satellite images. Earlier today, a short duration explosive event occurred at Bogoslof (15:50 UTC, June 5) and produced a small volcanic cloud that was observed by a pilot. These events are near the lower level of detection threshold based on current monitoring capabilities and reinforce the hazard that continues to exist in the vicinity of Bogolsof volcano.
This level of activity is consistent with the current Aviation Color Code of ORANGE and the Volcano Alert Level of WATCH.
|(12) Volcanic cloud height:||Several thousand feet asl.|
|(13) Other volcanic cloud information:||Visual observation.|
|(15) Contacts:||Michelle Coombs, Scientist-in-Charge, USGS
firstname.lastname@example.org (907) 786-7497
Jessica Larsen, Acting Coordinating Scientist, UAF email@example.com (907) 322-4085
|(16) Next Notice:|
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