ALASKA VOLCANO OBSERVATORY INFORMATION STATEMENT
U.S. Geological Survey
Wednesday, March 16, 2022, 9:50 AM AKDT (Wednesday, March 16, 2022, 17:50 UTC)
A severe interruption to a regional telecommunication link in King Salmon has resulted in the loss of data flow from seismic stations at nine volcanoes in the Katmai region and northern Alaska Peninsula over the past weeks. As a result, AVO can no longer seismically monitor the volcanoes listed below. Thus, we are unable to assess whether these volcanoes are at their normal background state, or to quickly confirm or dismiss reports of activity at these volcanoes.
Because these volcanoes are not currently seismically monitored, the Aviation Color Code and Alert Level is being changed from GREEN/NORMAL to UNASSIGNED/UNASSIGNED. As at other volcanoes without real-time seismic monitoring, AVO will continue to use satellite and lightning data, regional infrasound, and reports from pilots and ground observers to detect signs of eruptive activity.
There is no estimate of when the telecommunication link will be repaired. AVO will issue additional information once data from the seismic networks are available.
GRIGGS VOLCANO
(VNUM #312190)
58°21'26" N 155°6'13" W,
Summit Elevation 7602 ft (2317 m)
Current Volcano Alert Level: UNASSIGNED
Current Aviation Color Code: UNASSIGNED
Aviation color code and alert level changed to UNASSIGNED/UNASSIGNED due to unavailability of instrumental monitoring data.
KATMAI VOLCANO
(VNUM #312170)
58°16'44" N 154°57'12" W,
Summit Elevation 6716 ft (2047 m)
Current Volcano Alert Level: UNASSIGNED
Current Aviation Color Code: UNASSIGNED
Aviation color code and alert level changed to UNASSIGNED/UNASSIGNED due to unavailability of instrumental monitoring data.
MAGEIK VOLCANO
(VNUM #312150)
58°11'41" N 155°15'16" W,
Summit Elevation 7103 ft (2165 m)
Current Volcano Alert Level: UNASSIGNED
Current Aviation Color Code: UNASSIGNED
Aviation color code and alert level changed to UNASSIGNED/UNASSIGNED due to unavailability of instrumental monitoring data.
MARTIN VOLCANO
(VNUM #312140)
58°10'9" N 155°21'24" W,
Summit Elevation 6102 ft (1860 m)
Current Volcano Alert Level: UNASSIGNED
Current Aviation Color Code: UNASSIGNED
Aviation color code and alert level changed to UNASSIGNED/UNASSIGNED due to unavailability of instrumental monitoring data.
NOVARUPTA VOLCANO
(VNUM #312180)
58°15'55" N 155°9'33" W,
Summit Elevation 2759 ft (841 m)
Current Volcano Alert Level: UNASSIGNED
Current Aviation Color Code: UNASSIGNED
Aviation color code and alert level changed to UNASSIGNED/UNASSIGNED due to unavailability of instrumental monitoring data.
SNOWY MOUNTAIN VOLCANO
(VNUM #312200)
58°20'1" N 154°41'9" W,
Summit Elevation 7090 ft (2161 m)
Current Volcano Alert Level: UNASSIGNED
Current Aviation Color Code: UNASSIGNED
Aviation color code and alert level changed to UNASSIGNED/UNASSIGNED due to unavailability of instrumental monitoring data.
TRIDENT VOLCANO
(VNUM #312160)
58°14'3" N 155°6'9" W,
Summit Elevation 3599 ft (1097 m)
Current Volcano Alert Level: UNASSIGNED
Current Aviation Color Code: UNASSIGNED
Aviation color code and alert level changed to UNASSIGNED/UNASSIGNED due to unavailability of instrumental monitoring data.
UGASHIK-PEULIK VOLCANO
(VNUM #312130)
57°45'1" N 156°22'12" W,
Summit Elevation 4836 ft (1474 m)
Current Volcano Alert Level: UNASSIGNED
Current Aviation Color Code: UNASSIGNED
Aviation color code and alert level changed to UNASSIGNED/UNASSIGNED due to unavailability of instrumental monitoring data.
UKINREK MAARS VOLCANO
(VNUM #312131)
57°50'2" N 156°30'50" W,
Summit Elevation 299 ft (91 m)
Current Volcano Alert Level: UNASSIGNED
Current Aviation Color Code: UNASSIGNED
Aviation color code and alert level changed to UNASSIGNED/UNASSIGNED due to unavailability of instrumental monitoring data.
OTHER ALASKA VOLCANOES
Information on all Alaska volcanoes is available at: http://www.avo.alaska.edu.
For definitions of Aviation Color Codes and Volcano Alert Levels, see: http://www.avo.alaska.edu/color_codes.php
SUBSCRIBE TO VOLCANO ALERT MESSAGES by email: http://volcanoes.usgs.gov/vns/
FOLLOW AVO ON FACEBOOK: https://facebook.com/alaska.avo
FOLLOW AVO ON TWITTER: https://twitter.com/alaska_avo
CONTACT INFORMATION:
Michelle Coombs, Scientist-in-Charge, USGS, mcoombs@usgs.gov, (907) 786-7497
David Fee, Coordinating Scientist, UAFGI, dfee1@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.