AVO Logo
Site Map | FAQ |
Alaska Volcano Observatory
Great Sitkin | Cleveland | Pavlof | Semisopochnoi 
You are here: Home

OTHER US OBSERVATORIES

MEMBER AGENCIES
UAFGI Logo DGGS Logo USGS Logo
The Alaska Volcano Observatory (AVO) is a joint program of the U.S. Geological Survey (USGS), the Geophysical Institute of the University of Alaska Fairbanks (UAFGI), and the State of Alaska Division of Geological and Geophysical Surveys (ADGGS).
RESTLESS VOLCANOES
Great Sitkin
Color Code ORANGE / Alert Level WATCHvolcano image
Full details ...
Cleveland
Color Code YELLOW / Alert Level ADVISORYvolcano image
Full details ...
Pavlof
Color Code ORANGE / Alert Level WATCHvolcano image
Full details ...
Semisopochnoi
Color Code ORANGE / Alert Level WATCHvolcano image
Full details ...

NEWS
No volcanic gases detected at Mt. Edgecumbe during recent survey.
Posted: June 10, 2022
The Alaska Volcano Observatory is continuing to examine Mt. Edgecumbe and the Mt. Edgecumbe Volcanic Field for further evidence of volcanic activity.

Read the full version

LAST ACTIVITY REPORT
RSS FEED
Get these reports emailed to you: USGS VNS

ALASKA VOLCANO OBSERVATORY DAILY UPDATE
U.S. Geological Survey
Tuesday, June 28, 2022, 12:08 PM AKDT (Tuesday, June 28, 2022, 20:08 UTC)


GREAT SITKIN (VNUM #311120)
524'35" N 1766'39" W, Summit Elevation 5709 ft (1740 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

Low-level eruption of lava continues at Great Sitkin. Cloudy conditions obscured satellite views over the past day. Seisimicity remains low. It is possible that new explosive activity could occur with little or no warning.

Great Sitkin is monitored by local seismic and infrasound sensors, satellite data, web cameras, and remote infrasound and lightning networks.



PAVLOF (VNUM #312030)
5525'2" N 16153'37" W, Summit Elevation 8261 ft (2518 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

Pavlof Volcano continues to erupt from the vent on the east flank just below the volcano’s summit. Seismic tremor and elevated surface temperatures were observed over the last day and reflect the continued eruption of a small lava flow on the upper part of the volcano. No explosions were detected.

Small explosions associated with the current eruption could happen at any time and may be accompanied by small ash plumes within the immediate vicinity of the volcano. The level of unrest at Pavlof can change quickly and the progression to more significant eruptive activity can occur with little or no warning.

Pavlof is monitored by local seismic and infrasound sensors, satellite data, web cameras, and remote infrasound and lightning networks.



SEMISOPOCHNOI (VNUM #311060)
5155'44" N 17935'52" E, Summit Elevation 2625 ft (800 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

Low-level eruptive activity continues. Seismicity was quiet over the past 24 hours with no explosions detected. No activity was observed in cloudy satellite views. No ash emissions were observed. 

Small eruptions producing minor ash deposits within the vicinity of the active north crater of Mount Cerberus and ash clouds usually under 10,000 ft (3 km) above sea level have characterized the recent activity. Small explosions and associated ash emissions may continue and could be difficult to detect, especially when thick cloud cover obscures the volcano.

Semisopochnoi is monitored by local seismic and infrasound sensors, satellite data, web cameras, and remote infrasound and lightning networks.



CLEVELAND (VNUM #311240)
5249'20" N 16956'42" W, Summit Elevation 5676 ft (1730 m)
Current Volcano Alert Level: ADVISORY
Current Aviation Color Code: YELLOW

Unrest continues at Cleveland. Cloudy conditions obscured satellite views over the past day. Seismicity over the past day has been quiet.  No significant infrasound activity was detected on local or regional networks.

Episodes of lava effusion and explosions can occur without advance warning. Explosions from Cleveland are normally short duration and only present a hazard to aviation in the immediate vicinity of the volcano. Larger explosions that present a more widespread hazard to aviation are possible but are less likely and occur less frequently.

When operational, Cleveland volcano is monitored by only two seismic stations, which restricts AVO's ability to precisely locate earthquakes and detect precursory unrest that may lead to an explosive eruption. Rapid detection of an ash-producing eruption may be possible using a combination of seismic, infrasound, lightning, and satellite 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.

NEWS
AVO Radio
AVO Radio - Latest Episode

RUSSIAN VOLCANO INFORMATION

OUTSIDE LINKS
Contact AVO Privacy Accessibility Information Quality FOIA
URL: www.avo.alaska.edu/index.php
Page modified: April 11, 2022 15:35
Contact Information: AVO Web Team

twitter @alaska_avo
facebook alaska.avo
email Receive volcano updates by email: USGS VNS

This website is supported by the U.S. Geological Survey under Cooperative Agreement Grant G19AC00060 and G19AC00171.

Mention of trade names or commercial products does not constitute their endorsement by the U.S. Geological Survey.