(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
(2) Issued:	(20170127/1737Z)
(3) Volcano:	Bogoslof (VNUM #311300)
(4) Current Color Code:	ORANGE
(5) Previous Color Code:	ORANGE
(6) Source:	Alaska Volcano Observatory
(7) Notice Number:	2017/A46
(8) Volcano Location:	N 53 deg 55 min W 168 deg 2 min
(9) Area:	Aleutians
(10) Summit Elevation:	492 ft (150 m)
(11) Volcanic Activity Summary:	An increase in seismicity at Bogoslof began at 7:47 AKST (16:47 UTC) suggests that an explosive event likely underway or imminent. As of yet, there are no additional indications of eruptive activity in satellite, lightning or infrasound data. At present, the Aviation Color Code remains at ORANGE and the Alert Level at Watch.
(12) Volcanic cloud height:	none observed yet
(13) Other volcanic cloud information:	n/a
(14) Remarks:
(15) Contacts:	Michelle Coombs, Scientist-in-Charge, USGS mcoombs@usgs.gov (907) 786-7497 Jessica Larsen, Acting Coordinating Scientist, UAF jflarsen@alaska.edu (907) 322-4085
(16) Next Notice:

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AVO/USGS Volcanic Activity Notice

Volcano: Bogoslof (VNUM #311300)

Current Volcano Alert Level: WATCH

Current Aviation Color Code: ORANGE

Issued: Friday, January 27, 2017, 8:37 AM AKST
Source: Alaska Volcano Observatory
Notice Number: 2017/A46
Location: N 53 deg 55 min W 168 deg 2 min
Elevation: 492 ft (150 m)
Area: Aleutians

Volcanic Activity Summary: An increase in seismicity at Bogoslof began at 7:47 AKST (16:47 UTC) suggests that an explosive event likely underway or imminent. As of yet, there are no additional indications of eruptive activity in satellite, lightning or infrasound data.

At present, the Aviation Color Code remains at ORANGE and the Alert Level at Watch.



Recent Observations:
[Volcanic cloud height] none observed yet
[Other volcanic cloud information] n/a

Contacts: Michelle Coombs, Scientist-in-Charge, USGS
mcoombs@usgs.gov (907) 786-7497

Jessica Larsen, Acting Coordinating Scientist, UAF
jflarsen@alaska.edu (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.

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