(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
(2) Issued:	(20170105/2242Z)
(3) Volcano:	Bogoslof (VNUM #311300)
(4) Current Color Code:	RED
(5) Previous Color Code:	ORANGE
(6) Source:	Alaska Volcano Observatory
(7) Notice Number:	2017/A11
(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:	AVO has just detected an escalation in seismicty beginning at about 13:24 January 5 AKST (22:24 UTC) from Bogoslof volcano. This activity is accompanied by lightning strikes detected by the World Wide Lightning Detection Network indicating that a significant explosion has occurred. Based on the intensity of these signals AVO is raising the Aviation Color Code to RED and Alert Level to WARNING. More details will be provided as they become available.
(12) Volcanic cloud height:	Not yet available
(13) Other volcanic cloud information:	Not yet available
(14) Remarks:	Status of the ash cloud can be found at the Alaska Aviation Weather Unit website at http://aawu.arh.noaa.gov/
(15) Contacts:	Michelle Coombs, Scientist-in-Charge, USGS mcoombs@usgs.gov (907) 786-7497 Janet Schaefer, Acting Coordinating Scientist, DGGS janet.schaefer@alaska.gov (907) 322-4085
(16) Next Notice:

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AVO/USGS Volcanic Activity Notice

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: Thursday, January 5, 2017, 1:42 PM AKST
Source: Alaska Volcano Observatory
Notice Number: 2017/A11
Location: N 53 deg 55 min W 168 deg 2 min
Elevation: 492 ft (150 m)
Area: Aleutians

Volcanic Activity Summary: AVO has just detected an escalation in seismicty beginning at about 13:24 January 5 AKST (22:24 UTC) from Bogoslof volcano. This activity is accompanied by lightning strikes detected by the World Wide Lightning Detection Network indicating that a significant explosion has occurred. Based on the intensity of these signals AVO is raising the Aviation Color Code to RED and Alert Level to WARNING. More details will be provided as they become available.

Recent Observations:
[Volcanic cloud height] Not yet available
[Other volcanic cloud information] Not yet available

Remarks: Status of the ash cloud can be found at the Alaska Aviation Weather Unit website at http://aawu.arh.noaa.gov/

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

Janet Schaefer, Acting Coordinating Scientist, DGGS
janet.schaefer@alaska.gov (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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