AVO Logo
Site Map | FAQ |
Alaska Volcano Observatory
Summary | Color Code Definitions | Webcams | Webicorders | RSAM | Activity Notifications | Notification Search | Great Sitkin | Pavlof | Semisopochnoi 
You are here: Home > Current Volcanic Activity > Activity Notifications

VOLCANO ACTIVITY NOTIFICATIONS

2020
September (33 reports)
August (32 reports)
July (32 reports)
June (38 reports)
May (32 reports)
April (32 reports)
March (35 reports)
February (34 reports)
January (40 reports)
2019
December (35 reports)
November (33 reports)
October (33 reports)
September (35 reports)
August (33 reports)
July (36 reports)
June (33 reports)
May (31 reports)
April (31 reports)
March (31 reports)
February (31 reports)
January (34 reports)
2018
December (34 reports)
November (35 reports)
October (33 reports)
September (34 reports)
August (31 reports)
July (32 reports)
June (33 reports)
May (34 reports)
April (32 reports)
March (35 reports)
February (30 reports)
January (32 reports)
2017
December (34 reports)
November (33 reports)
October (31 reports)
September (33 reports)
August (47 reports)
July (52 reports)
June (59 reports)
May (40 reports)
April (35 reports)
March (39 reports)
February (51 reports)
January (80 reports)
2016
December (52 reports)
November (32 reports)
October (32 reports)
September (30 reports)
August (33 reports)
July (36 reports)
June (33 reports)
May (36 reports)
April (34 reports)
March (36 reports)
February (30 reports)
January (32 reports)
2015
December (34 reports)
November (33 reports)
October (39 reports)
September (36 reports)
August (32 reports)
July (36 reports)
June (32 reports)
May (36 reports)
April (35 reports)
March (34 reports)
February (28 reports)
January (34 reports)
2014
December (32 reports)
November (36 reports)
October (34 reports)
September (33 reports)
August (33 reports)
July (35 reports)
June (39 reports)
May (33 reports)
April (32 reports)
March (32 reports)
February (30 reports)
January (35 reports)
2013
December (33 reports)
November (31 reports)
October (34 reports)
September (32 reports)
August (34 reports)
July (32 reports)
June (36 reports)
May (36 reports)
April (29 reports)
March (35 reports)
February (30 reports)
January (32 reports)
2012
December (30 reports)
November (32 reports)
October (31 reports)
September (31 reports)
August (32 reports)
July (31 reports)
June (32 reports)
May (32 reports)
April (30 reports)
March (35 reports)
February (30 reports)
January (8 reports)
2011
December (27 reports)
November (31 reports)
October (31 reports)
September (30 reports)
August (31 reports)
July (15 reports)
June (4 reports)
May (4 reports)
April (5 reports)
March (31 reports)
February (28 reports)
January (31 reports)
2010
December (31 reports)
November (30 reports)
October (31 reports)
September (30 reports)
August (9 reports)
July (5 reports)
June (14 reports)
May (10 reports)
April (13 reports)
February (4 reports)
January (10 reports)
2009
December (5 reports)
November (1 report)
October (22 reports)
September (31 reports)
August (29 reports)
July (36 reports)
June (33 reports)
May (37 reports)
April (35 reports)
March (58 reports)
February (30 reports)
January (39 reports)
2008
December (32 reports)
November (32 reports)
October (35 reports)
September (32 reports)
August (45 reports)
July (45 reports)
June (30 reports)
May (32 reports)
April (30 reports)
March (5 reports)

Older reports can be found here.

Report Text
Printer friendly version

(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
(2) Issued: (20191106/1946Z)
(3) Volcano: Pavlof (VNUM #312030)
(4) Current Color Code: GREEN
(5) Previous Color Code: YELLOW
(6) Source: Alaska Volcano Observatory
(7) Notice Number:
(8) Volcano Location: N 55 deg 25 min W 161 deg 53 min
(9) Area: Alaska Peninsula
(10) Summit Elevation: 8261 ft (2518 m)
(11) Volcanic Activity Summary: The Alaska Volcano Observatory is reducing the Aviation Color Code to GREEN and the Alert Level to NORMAL. Small explosion signals from Pavlof were detected on October 19, 2019 on the infrasound network located at Sand Point and on the on the local seismic and infrasound network. Since that time there have not been additional signs of unrest in any of the monitoring data. Pavlof is now considered to have returned to background levels of activity.
(12) Volcanic cloud height: None
(13) Other volcanic cloud information: None
(14) Remarks: 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.
(15) Contacts: Michelle Coombs, Scientist-in-Charge, USGS
mcoombs@usgs.gov (907) 786-7497

David Fee, Coordinating Scientist, UAFGI
dfee1@alaska.edu (907) 322-4085
(16) Next Notice:

AVO/USGS Volcanic Activity Notice

Volcano: Pavlof (VNUM #312030)

Current Volcano Alert Level: NORMAL
Previous Volcano Alert Level: ADVISORY

Current Aviation Color Code: GREEN
Previous Aviation Color Code: YELLOW

Issued: Wednesday, November 6, 2019, 10:46 AM AKST
Source: Alaska Volcano Observatory
Notice Number:
Location: N 55 deg 25 min W 161 deg 53 min
Elevation: 8261 ft (2518 m)
Area: Alaska Peninsula

Volcanic Activity Summary: The Alaska Volcano Observatory is reducing the Aviation Color Code to GREEN and the Alert Level to NORMAL. Small explosion signals from Pavlof were detected on October 19, 2019 on the infrasound network located at Sand Point and on the on the local seismic and infrasound network. Since that time there have not been additional signs of unrest in any of the monitoring data. Pavlof is now considered to have returned to background levels of activity.

Recent Observations:
[Volcanic cloud height] None
[Other volcanic cloud information] None
[Lava flow/dome] None
[Lava flow] None

Remarks: 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.

Contacts: 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.
VOLCANO ALERT LEVELS
NORMAL
Volcano is in typical background, noneruptive state or, after a change from a higher level, volcanic activity has ceased and volcano has returned to noneruptive background state.
ADVISORY
Volcano is exhibiting signs of elevated unrest above known background level or, after a change from a higher level, volcanic activity has decreased significantly but continues to be closely monitored for possible renewed increase.
WATCH
Volcano is exhibiting heightened or escalating unrest with increased potential of eruption, timeframe uncertain, OR eruption is underway but poses limited hazards.
WARNING
Hazardous eruption is imminent, underway, or suspected.
AVIATION COLOR CODES
GREEN
Volcano is in typical background, noneruptive state or, after a change from a higher level, volcanic activity has ceased and volcano has returned to noneruptive background state.
YELLOW
Volcano is exhibiting signs of elevated unrest above known background level or, after a change from a higher level, volcanic activity has decreased significantly but continues to be closely monitored for possible renewed increase.
ORANGE
Volcano is exhibiting heightened or escalating unrest with increased potential of eruption, timeframe uncertain, OR eruption is underway with no or minor volcanic-ash emissions [ash-plume height specified, if possible].
RED
Eruption is imminent with significant emission of volcanic ash into the atmosphere likely OR eruption is underway or suspected with significant emission of volcanic ash into the atmosphere [ash-plume height specified, if possible].
Contact AVO Privacy Accessibility Information Quality FOIA
URL: www.avo.alaska.edu/activity/avoreport.php
Page modified: February 17, 2017 10:11
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.