Alaska Volcano Observatory

Beginning in early March 2026, the U.S. Geological Survey will introduce updated Volcano Observatory Notices to Aviation (VONAs) that follow new standards set by the International Civil Aviation Organization (ICAO).

Published: 2026-03-05

In the event of a federal government shutdown

Published: 2025-10-01

Spurr Information Statement  July 29th 2025

Published: 2025-07-29

Spurr Information Statement  May 28th 2025

Published: 2025-05-28

Spurr Information Statement April 17, 2025

Published: 2025-04-17

Why does Mount Spurr's plume look different on different days

Published: 2025-03-28

Likelihood of Mount Spurr eruption in the next few weeks or months has increased

Published: 2025-03-11

Mount Spurr volcano Information Circular free download

Published: 2025-03-10

Spurr Information Statement February 6, 2025

Published: 2025-02-07

Mount Spurr activity Information Statement July 3, 2024

Published: 2024-07-03

Mount Spurr seismic activity Information Statement May 15, 2024

Published: 2024-05-15

Edgecumbe ongoing low-level activity information statement February 9, 2024

Published: 2024-02-09

Edgecumbe monitoring information statement January 26, 2024

Published: 2024-01-26

AVO website scavenger hunt!

Published: 2024-01-17

Trident seismicity information statement July 25, 2023

Published: 2023-07-25

Notice: Planned Maintenance and Power Downs at Butrovich Data Center - Website Service Outage

Published: 2023-05-19

Alaska Volcano Observatory Sitka visit May 5-9, 2023

Published: 2023-04-24

Get to know Makushin Volcano

Published: 2023-04-13

AVO Information Statement on Sheveluch Volcano, April 13, 2023

Published: 2023-04-13

Currently active Mount Cerberus volcano now named Mount Young

Published: 2022-12-22

33rd anniversary of Redoubt's 1989-1990 eruption

Published: 2022-12-13

Where did the Mystery Ash come from? Maybe YOU have the answer!

Published: 2022-10-21

No volcanic gases detected at Mt. Edgecumbe during recent survey.

Published: 2022-06-10

Mt. Edgecumbe gets a new monitoring station

Published: 2022-05-23

Mount Edgecumbe volcanic field changes from "dormant" to "active" -- what does that mean?

Published: 2022-05-09

AVO Visits Sitka and more information! May 6, 2022

Published: 2022-05-06

Mount Edgecumbe Information Statement, April 22, 2022

Published: 2022-04-22

Meet the Atka Volcanic Complex

Published: 2021-08-25

Resuspended ash from Aniakchak: August 2, 2021 Information Statement

Published: 2021-08-02

90th Anniversary of the 1931 eruption of Aniakchak Volcano, Alaska

Published: 2021-05-03

Booming sounds from Veniaminof and their source

Published: 2021-03-29

AVO assists in multi-agency effort to monitor the Barry Arm Landslide in Prince William Sound

Published: 2021-02-22

AVO's 2020 Field Season

Published: 2021-02-03

Alaska Volcano Observatory Expands Eruption Detection Capability in Cook Inlet

Published: 2020-10-15

The Alaska Volcano Observatory’s summer 2020 field work plans

Published: 2020-06-25

Update on AVO Operations during COVID-19

Published: 2020-03-25

AVO announces extensive upgrades to volcano monitoring equipment during summer 2019 fieldwork

Published: 2019-09-06

New publication: Alaska Volcano Observatory geochemical database, version 2

Published: 2019-07-26

New publication: On the eruption age and provenance of the Old Crow tephra

Published: 2019-02-05

New publication: Historically active volcanoes of Alaska v. 3

Published: 2019-01-02

In the event of a federal government shutdown

Published: 2018-12-21

Tectonic earthquakes and Alaska volcanoes

Published: 2018-11-30

Volcanic Threat Assessment helps prioritize risk reduction efforts at U.S. volcanoes

Published: 2018-10-25

AVO hiring a software engineer at University of Alaska Fairbanks Geophysical Institute

Published: 2018-10-03

Happy 30th Birthday, AVO!

Published: 2018-04-01

New publication: Postglacial eruptive history and geochemistry of Semisopochnoi volcano, western Aleutian Islands, Alaska

Published: 2018-02-26

New publication: Geochemistry of some Quaternary lavas from the Aleutian Arc and Mt. Wrangell

Published: 2018-01-23

New publication: Geologic map of Chiginagak volcano

Published: 2018-01-05

New publication: Major-element glass compositions of tephra from the circa 3.6 ka eruption of Aniakchak volcano, Alaska Peninsula, Alaska

Published: 2018-01-05

New publication: The 2014 eruptions of Pavlof Volcano, Alaska

Published: 2018-01-05

New publication: Historically active volcanoes of Alaska reference deck, v.2

Published: 2018-01-05

Bogoslof Volcano, Alaska: ongoing eruption through the Bering Sea

Published: 2017-04-03

Thank you Unalaska!

Published: 2017-02-01

Bogoslof Summary of Current Activity

Published: 2017-01-31

Bogoslof Summary of Current Activity, through 19 January 2017

Published: 2017-01-04

AVO studies resuspended volcanic ash from the Katmai region to Kodiak Island, Alaska

Published: 2016-04-25

Citizen Science - Volcanic Ash Collection Workshop and Public Talk, Kodiak

Published: 2016-04-25

January 30, 2016 Fieldwork at Iliamna and Spurr

Published: 2016-02-12

New publication highlights the importance of ash scrubbing in the evaluation of hazards from explosive eruptions

Published: 2016-01-13

Critical Volcano Monitoring Systems Returned to Operation in Alaska

Published: 2015-10-15

Resuspended Volcanic Ash from the Katmai Region to Kodiak Island

Published: 2015-09-04

Remobilized Katmai 1912 ash: community events and health hazard analysis

Published: 2015-09-03

Makushin 2015 Geology Blog

Published: 2015-07-22

Sixth Anniversary of the Redoubt 2009 Eruption

Published: 2015-03-22

Happy Anniversary, Shishaldin 1967 and 2014!

Published: 2015-01-28

New Publication on Aniakchak Volcano Available Online

Published: 2014-12-30

25th Anniversary of the 1989-90 Eruption of Redoubt Volcano

Published: 2014-12-13

AVO geochemical database now available

Published: 2014-10-13

AVO Scientists Discuss Cook Inlet Volcanoes on Frontier Scientists TV Series

Published: 2014-10-06

Announcing new monitoring equipment for Cleveland volcano

Published: 2014-09-11

22nd anniversary of Crater Peak (Mt Spurr) June 27 eruption

Published: 2014-06-27

Revised Alaska Interagency Operating Plan for Volcanic Ash Episodes

Published: 2014-06-05

Anniversary of Aniakchak 1931 eruption!

Published: 2014-05-01

April 19th - anniversary of Shishaldin 1999 and Pavlof 1986!

Published: 2014-04-19

Ground-coupled airwaves and explosion signals at Shishaldin

Published: 2014-04-10

5th anniversary of the Redoubt 2009 eruption

Published: 2014-03-14

Loss of Critical Volcano Monitoring Information in Alaska

Published: 2014-02-10

NEW VOLCANO NUMBERING SYSTEM IMPLEMENTED

Published: 2014-01-31

Loss of Critical Volcano Monitoring Information in Alaska

Published: 2014-01-29

Report released: Geochemical investigations of the hydrothermal system on Akutan Island, July 2012

Published: 2014-01-09

24th Anniversary of the 1989-90 eruption of Redoubt Volcano

Published: 2013-12-14

Veterans Day slideshow

Published: 2013-11-11

Call for images from active and retired service members!

Published: 2013-10-21

AVO operations during lapse of federal government appropriations

Published: 2013-10-01

New Tool for Reporting Alaska Volcanic Ash Fall Allows Residents to Assist Scientific Monitoring

Published: 2013-07-01

25 years monitoring Alaska volcanoes - press release

Published: 2013-04-01

AVO slideshow for Veterans Day

Published: 2012-11-05

Large ash eruptions: when volcanoes reshape valleys -- free public lecture

Published: 2012-08-21

Father Hubbard and the history of exploration in the Valley of Ten Thousand Smokes - free lecture

Published: 2012-08-14

Remote sensing and volcanoes - free public lecture

Published: 2012-08-07

The Great Eruption of 1912 - free public lecture

Published: 2012-07-31

Infrasound Detection of Volcanic Explosions

Published: 2012-07-26

Archaeology of Katmai area and the impact of past eruptions - free public lecture

Published: 2012-07-24

Historical Photography of the Great 1912 Eruption - free public lecture

Published: 2012-07-17

Catastrophic Eruptions and People -- free public lecture

Published: 2012-07-10

Eruption of an Island Volcano: Kasatochi, 2008 -- free public lecture

Published: 2012-07-02

Exploring the Plumbing System of Katmai Volcanoes

Published: 2012-06-20

Exploration of Katmai and the Valley of Ten Thousand Smokes - free public lecture

Published: 2012-06-14

Commemorative presentation in Kodiak: Be Prepared!

Published: 2012-06-08

Earthquakes Below Alaskan Volcanoes - free public lecture

Published: 2012-06-07

DisaStory - A Day of Oral History

Published: 2012-06-04

1912 Katmai Eruption Children's Program

Published: 2012-06-01

Monitoring Alaska's Volcanoes - free public lecture

Published: 2012-05-30

Landmark volcano study: Katmai Centennial Perspectives free download

Published: 2012-05-24

Special activities on AVO's website for 1912 centennial

Published: 2012-05-21

Alaska Park Science - Volcanoes of Katmai and the Alaska Peninsula

Published: 2012-05-14

AVO at the Alaska Aviation Trade Show and Conference May 5-6

Published: 2012-04-30

The Great Katmai Eruption of 1912 - a free lecture in Anchorage: April 24, 2012

Published: 2012-04-17

The Great Katmai Eruption of 1912: A Century of Research Tracks Progress in Volcano Science

Published: 2012-04-11

April 25 -- The Novarupta - Katmai 1912 eruption: a free lecture in Fairbanks by Judy Fierstein

Published: 2012-04-06

Summer lecture series on Alaskan volcanism

Published: 2012-03-30

Poster contest celebrates anniversary of Katmai eruption!

Published: 2012-03-16

Mark your calendar: April 24 public lecture on the great Novarupta-Katmai eruption of 1912

Published: 2012-03-15

An important volcanic anniversary in Alaska!

Published: 2012-03-05

PUBLISHED: The 2009 Eruption of Redoubt Volcano, Alaska

Published: 2012-02-29

2011 Alaska Interagency Operating Plan for Volcanic Ash Episodes now available

Published: 2011-08-12

How does Cleveland's lava dome compare to Redoubt's 2009 lava dome?

Published: 2011-08-11

Alaska Volcanoes Guidebook for Teachers

Published: 2011-02-22

New Fact Sheet on Kasatochi

Published: 2010-05-06

How big is the 2009 Redoubt lava dome?

Published: 2010-04-28

New map: Historically active volcanoes of Alaska

Published: 2009-11-19

Steaming at Augustine

Published: 2009-08-27

Sarychev Volcano: Active Volcanoes of the Kurile Islands

Published: 2009-06-22

Footage of Alaska's Redoubt Volcano taken on Monday, March 23, 2009.

Published: 2009-03-24

Pre-eruption footage of Redoubt Volcano, Saturday, March 20, 2009

Published: 2009-03-23

Redoubt Volcano B-Roll Footage

Published: 2009-02-12

Kasatochi 2008 eruption summary

Published: 2008-11-19

6th Biennial Workshop on Subduction Processes emphasizing the Kurile-Kamchatka-Aleutian Arcs Geophysical Institute, University of Alaska, Fairbanks, Alaska

Published: 2008-10-22

Chiginagak volcano's acid crater-lake continues to supply acidic, metal-laden water to salmon spawning habitat on the Alaska Peninsula

Published: 2008-10-03

ALASKA VOLCANOES - TEACHER ACTIVITY GUIDEBOOK & KIT

Published: 2008-09-17

20 years of AVO

Published: 2008-04-01

Viewing earthquake information for Alaska volcanoes

Published: 2008-02-25

Pavlof webcam added

Published: 2007-08-30

Activity at Pavlof volcano

Published: 2007-08-18

Pavlof thermal anomaly

Published: 2007-08-16

AVO Scientists present at U.S. Department of Education Teacher-to-Teacher Workshop

Published: 2007-08-06

Cleveland webcam available

Published: 2007-08-06

Activity at Cleveland volcano

Published: 2007-07-27

Cleveland satellite images

Published: 2007-07-25

Sheveluch Eruption

Published: 2007-03-29

U.S. Geological Survey's alert notification system for volcanic activity

Published: 2007-03-27

KVERT Volcanic Warnings Ceased

Published: 2007-03-01

New alert system for volcanic activity

Published: 2006-09-26

Three new webcams added

Published: 2006-09-07

AGU presentations requested

Published: 2006-07-24

New webcam available

Published: 2006-03-12

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