Printer friendly versionAVO/USGS Volcanic Activity Notice
Current Volcano Alert Level: WATCH
Previous Volcano Alert Level: ADVISORY
Current Aviation Color Code: ORANGE
Previous Aviation Color Code: YELLOW
Thursday, July 28, 2016, 11:55 AM AKDT
Alaska Volcano Observatory
N 55 deg 25 min W 161 deg 53 min
8261 ft (2518 m)
Volcanic Activity Summary: Low-level eruptive activity observed in web camera and satellite images of Pavlof. Vigorous, steam-rich degassing was observed in web camera images this morning. Recent satellite images and a pilot report provide evidence of minor ash emissions associated with the degassing. Seismic tremor continues at amplitudes similar to the previous several days. This unrest prompts AVO to raise the Aviation Color Code to ORANGE and the Volcano Alert Level to WATCH.
Activity is currently at relatively low levels. An increase in eruptive activity is possible and could occur with little or no warning. AVO will continue to monitor the volcano closely.
[Volcanic cloud height] Maximum altitude currently below 15,000 ft msl
[Other volcanic cloud information] Mixture of steam and ash. Satellite discrimination of ash and PIREP of steam/ash.
Pavlof Volcano is a snow- and ice-covered stratovolcano located on the southwestern end of the Alaska Peninsula about 953 km (592 mi) southwest of Anchorage. The volcano is about 7 km (4.4 mi) in diameter and has active vents on the north and east sides close to the summit. With over 40 historic eruptions, it is one of the most consistently active volcanoes in the Aleutian arc. Eruptive activity is generally characterized by sporadic Strombolian lava fountaining continuing for a several-month period. Ash plumes as high as 49,000 ft ASL have been generated by past eruptions of Pavlof, and during the March 2016 eruption, ash plumes as high as 40,000 feet above sea level were generated and the ash was tracked in satellite data as distant as eastern Canada. The nearest community, Cold Bay, is located 60 km (37 miles) to the southwest of Pavlof.
John Paskievitch, Acting Scientist-in-Charge, USGS
email@example.com (907) 786-7497
Jeff Freymueller, Coordinating Scientist, UAFGI
firstname.lastname@example.org (907) 322-4085
A new VAN will be issued if conditions change significantly or alert levels are modified. While a VAN is in effect, regularly scheduled updates are posted at
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.