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Atka

Photo of this volcano
  • United States
  • Alaska
  • Stratovolcano(es)
  • 1812 CE
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 52.331°N
  • 174.139°W

  • 1448 m
    4751 ft

  • 311160
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

Most Recent Bulletin Report: June 1996 (BGVN 21:06) Citation IconCite this Report

Eruption of volcanic ash

On 29 June, Japan Airlines reported volcanic ash erupting from Atka. In addition, GEOS-9 satellite images showed a possible small ash cloud in the immediate vicinity of Atka. In early May 1995 residents of Atka village observed a small plume-like cloud over Kliuchef and reported a strong sulfur smell (BGVN 20:05).

[The 1996 eruption described here was later discredited.]

Information Contacts: Alaska Volcano Observatory (AVO), a cooperative program of a) U.S. Geological Survey, 4200 University Drive, Anchorage, AK 99508-4667, USA, b) Geophysical Institute, University of Alaska, PO Box 757320, Fairbanks, AK 99775-7320, USA, and c) Alaska Division of Geological & Geophysical Surveys; NOAA/NESDIS Synoptic Analysis Branch (SAB), Room 401, 5200 Auth Road, Camp Springs, MD 20746, USA.

The Global Volcanism Program has no Weekly Reports available for Atka.

Bulletin Reports - Index

Reports are organized chronologically and indexed below by Month/Year (Publication Volume:Number), and include a one-line summary. Click on the index link or scroll down to read the reports.

11/1993 (BGVN 18:11) "Rumbling" and degassing accompanies M 5.1 earthquake

05/1995 (BGVN 20:05) Small plume-like cloud over Kliuchef and very strong sulfur smell

06/1996 (BGVN 21:06) Eruption of volcanic ash




Information is preliminary and subject to change. All times are local (unless otherwise noted)


November 1993 (BGVN 18:11) Citation IconCite this Report

"Rumbling" and degassing accompanies M 5.1 earthquake

On 10 December AVO reported the following. "On 4 December, following a M 5.1 earthquake at 1836 beneath the . . . island of Atka, residents of Atka village reported "rumbling" from the cluster of volcanoes that forms the N part of the island. At the same time, residents observed increased steaming from a fumarolic area on the flank of Kliuchef volcano and noted a distinct sulphur smell. A check of satellite imagery did not confirm any change in the surface state of the volcanoes. Late this week, the weather had deteriorated and no visual observations of the volcanoes were possible. . . ."

Information Contacts: AVO.


May 1995 (BGVN 20:05) Citation IconCite this Report

Small plume-like cloud over Kliuchef and very strong sulfur smell

Observers in the village of Atka on Atka Island in the central Aleutians reported a very strong sulfur smell on 1 May, and to a lesser extent on 4 May when they observed a small plume-like cloud over Kliuchef. Fumarolic areas exist on or near both Korovin and Kliuchef volcanoes, N of the village. Korovin was active most recently in 1987, and Kliuchef has had Holocene activity. Satellite images did not reveal any plume-like clouds associated with the island, however, a "hot-spot" possibly of fumarolic areas, was observed. A similar sulfur smell was reported by residents in December 1993, at about the same time they felt rumbling from a M 5.1 earthquake (BGVN 18:11).

Information Contacts: Alaska Volcano Observatory (AVO), a cooperative program of a) U.S. Geological Survey, 4200 University Drive, Anchorage, AK 99508-4667 USA, b) Geophysical Institute, University of Alaska, PO Box 757320, Fairbanks, AK 99775-7320, USA, and c) Alaska Division of Geological & Geophysical Surveys, 794 University Ave., Suite 200, Fairbanks, AK 99709, USA.


June 1996 (BGVN 21:06) Citation IconCite this Report

Eruption of volcanic ash

On 29 June, Japan Airlines reported volcanic ash erupting from Atka. In addition, GEOS-9 satellite images showed a possible small ash cloud in the immediate vicinity of Atka. In early May 1995 residents of Atka village observed a small plume-like cloud over Kliuchef and reported a strong sulfur smell (BGVN 20:05).

[The 1996 eruption described here was later discredited.]

Information Contacts: Alaska Volcano Observatory (AVO), a cooperative program of a) U.S. Geological Survey, 4200 University Drive, Anchorage, AK 99508-4667, USA, b) Geophysical Institute, University of Alaska, PO Box 757320, Fairbanks, AK 99775-7320, USA, and c) Alaska Division of Geological & Geophysical Surveys; NOAA/NESDIS Synoptic Analysis Branch (SAB), Room 401, 5200 Auth Road, Camp Springs, MD 20746, USA.

This compilation of synonyms and subsidiary features may not be comprehensive. Features are organized into four major categories: Cones, Craters, Domes, and Thermal Features. Synonyms of features appear indented below the primary name. In some cases additional feature type, elevation, or location details are provided.

Eruptive History

There is data available for 3 Holocene eruptive periods.

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
[ 1996 Jun 29 ] [ Unknown ] Discredited    
[ 1995 May 1 ] [ Unknown ] Uncertain 1  
1812 Unknown Confirmed 3 Historical Observations Sarichef or more probably Kliuchef
Deformation History

There is data available for 6 deformation periods. Expand each entry for additional details.


Deformation during 2006 Jun - 2006 Nov [Uplift; Observed by InSAR]

Start Date: 2006 Jun Stop Date: 2006 Nov Direction: Uplift Method: InSAR
Magnitude: 6.000 cm Spatial Extent: 17.00 km Latitude: 52.000 Longitude: -174.000

Remarks: Deformation associated with the 2006 earthquake swarm

Figure (see Caption)

a Observed b model, and c residual interferograms of the Atka volcanic center during October 17, 2005?October 2, 2006. The residual interferogram was produced by removing volcano-wide deformation based on the best-fit model in (b). One fringe (full color cycle) represents 2.8 cm of range change along the SAR look direction. Areas that lack interferometric coherence are uncolored

From: Lu and Dzurisin 2014.


Reference List: Lu and Dzurisin 2014.

Full References:

Lubis, A. M., 2014. Uplift of Kelud Volcano Prior to the November 2007 Eruption as Observed by L-Band Insar. Journal of Engineering and Technological Sciences, 46(3), 245-257.

Deformation during 2004 - 2005 [Subsidence; Observed by InSAR]

Start Date: 2004 Stop Date: 2005 Direction: Subsidence Method: InSAR
Magnitude: Unknown Spatial Extent: 6.00 km Latitude: 52.000 Longitude: -174.000

Remarks: Subsidence due to depressurization in the magmatic and/or hydrothermal systems at 3-4 km depth below the surface.

Figure (see Caption)

InSAR deformation phase values are draped over a shaded relief map derived from SRTM DEM data. Each fringe (full color cycle) represents 2.8 cm of range change between the ground and the satellite. Areas that lack interferometric coherence are uncolored. Each InSAR image is annotated with image acquisition dates, SAR sensor (E for ERS-2, V for Envisat), and track number

From: Lu and Dzurisin 2014.


Reference List: Lu and Dzurisin 2014.

Full References:

Lubis, A. M., 2014. Uplift of Kelud Volcano Prior to the November 2007 Eruption as Observed by L-Band Insar. Journal of Engineering and Technological Sciences, 46(3), 245-257.

Deformation during 2003 - 2004 [Uplift; Observed by InSAR]

Start Date: 2003 Stop Date: 2004 Direction: Uplift Method: InSAR
Magnitude: Unknown Spatial Extent: 12.00 km Latitude: 52.000 Longitude: -174.000

Remarks: Uplift due to magma intrusion at 5-8 km depth.

Figure (see Caption)

InSAR deformation phase values are draped over a shaded relief map derived from SRTM DEM data. Each fringe (full color cycle) represents 2.8 cm of range change between the ground and the satellite. Areas that lack interferometric coherence are uncolored. Each InSAR image is annotated with image acquisition dates, SAR sensor (E for ERS-2, V for Envisat), and track number

From: Lu and Dzurisin 2014.


Reference List: Lu and Dzurisin 2014.

Full References:

Lubis, A. M., 2014. Uplift of Kelud Volcano Prior to the November 2007 Eruption as Observed by L-Band Insar. Journal of Engineering and Technological Sciences, 46(3), 245-257.

Deformation during 1999 - 2000 [Uplift; Observed by InSAR]

Start Date: 1999 Stop Date: 2000 Direction: Uplift Method: InSAR
Magnitude: Unknown Spatial Extent: 12.00 km Latitude: 52.000 Longitude: -174.000

Remarks: Uplift due to magma intrusion at 5-8 km depth.

Figure (see Caption)

InSAR deformation phase values are draped over a shaded relief map derived from SRTM DEM data. Each fringe (full color cycle) represents 2.8 cm of range change between the ground and the satellite. Areas that lack interferometric coherence are uncolored. Each InSAR image is annotated with image acquisition dates, SAR sensor (E for ERS-2, V for Envisat), and track number

From: Lu and Dzurisin 2014.


Reference List: Lu and Dzurisin 2014.

Full References:

Lubis, A. M., 2014. Uplift of Kelud Volcano Prior to the November 2007 Eruption as Observed by L-Band Insar. Journal of Engineering and Technological Sciences, 46(3), 245-257.

Deformation during 1998 - 1999 [Subsidence; Observed by InSAR]

Start Date: 1998 Stop Date: 1999 Direction: Subsidence Method: InSAR
Magnitude: Unknown Spatial Extent: 6.00 km Latitude: 52.000 Longitude: -174.000

Remarks: Subsidence due to depressurization in the magmatic and/or hydrothermal systems at 3-4 km depth below the surface.

Figure (see Caption)

InSAR deformation phase values are draped over a shaded relief map derived from SRTM DEM data. Each fringe (full color cycle) represents 2.8 cm of range change between the ground and the satellite. Areas that lack interferometric coherence are uncolored. Each InSAR image is annotated with image acquisition dates, SAR sensor (E for ERS-2, V for Envisat), and track number

From: Lu and Dzurisin 2014.


Reference List: Lu and Dzurisin 2014.

Full References:

Lubis, A. M., 2014. Uplift of Kelud Volcano Prior to the November 2007 Eruption as Observed by L-Band Insar. Journal of Engineering and Technological Sciences, 46(3), 245-257.

Deformation during 1997 - 1998 [Subsidence; Observed by InSAR]

Start Date: 1997 Stop Date: 1998 Direction: Subsidence Method: InSAR
Magnitude: Unknown Spatial Extent: 6.00 km Latitude: 52.000 Longitude: -174.000

Remarks: Subsidence due to depressurization in the magmatic and/or hydrothermal systems at 3-4 km depth below the surface.

Figure (see Caption)

InSAR deformation phase values are draped over a shaded relief map derived from SRTM DEM data. Each fringe (full color cycle) represents 2.8 cm of range change between the ground and the satellite. Areas that lack interferometric coherence are uncolored. Each InSAR image is annotated with image acquisition dates, SAR sensor (E for ERS-2, V for Envisat), and track number

From: Lu and Dzurisin 2014.


Reference List: Lu and Dzurisin 2014.

Full References:

Lubis, A. M., 2014. Uplift of Kelud Volcano Prior to the November 2007 Eruption as Observed by L-Band Insar. Journal of Engineering and Technological Sciences, 46(3), 245-257.

Emission History

There is no Emissions History data available for Atka.

Photo Gallery

An aerial view from the WNW shows a young satellitic vent on the northeast shoulder of Kluichef volcano. Clouds touch the tip of Sarichef volcano in the center distance. Kliuchef lies within a Pleistocene Atka caldera and is the most recently active of the post-caldera stratovolcanoes at Atka.

Photo by Game McGimsey, 2004 (Alaska Volcano Observatory, U.S. Geological Survey).
See title for photo information.
GVP Map Holdings

The maps shown below have been scanned from the GVP map archives and include the volcano on this page. Clicking on the small images will load the full 300 dpi map. Very small-scale maps (such as world maps) are not included. The maps database originated over 30 years ago, but was only recently updated and connected to our main database. We welcome users to tell us if they see incorrect information or other problems with the maps; please use the Contact GVP link at the bottom of the page to send us email.

Title: Saint George Basin Regional Map
Publisher: USDI Minerals Management Service
Country: United States
Year: 1984
Series: OCSRM maps
Map Type: Bathymetric
Scale: 1:1,000,000
Map of Saint George Basin Regional Map
Title: Seguam
Publisher: US Geological Survey
Country: United States
Year: 1983
Series: AK Topo 250
Map Type: Topographic
Scale: 1:250,000
Map of Seguam
Title: Atka
Publisher: US Geological Survey
Country: United States
Year: 1982
Series: Radar Image Mosaic
Map Type: Photo (Radar)
Scale: 1:250,000
Map of Atka
Title: Magnetic Map of N Pacific Ocean
Publisher: US Department of Commerce, NOAA National Ocean Service
Country: United States
Year: 1973
Series: Seamap
Map Type: Geophysical (Magnetic)
Scale: 1:1,000,000
Map of Magnetic Map of N Pacific Ocean
Title: Gravity Map of N Pacific Ocean
Publisher: US Department of Commerce, NOAA National Ocean Service
Country: United States
Year: 1973
Series: Seamap
Map Type: Geophysical (Gravity)
Scale: 1:1,000,000
Map of Gravity Map of N Pacific Ocean
Title: Atka
Publisher: US Geological Survey
Country: United States
Year: 1952
Series: AK Recon Topo 250
Map Type: Topographic
Scale: 1:250,000
Map of Atka
Title: Seguam
Publisher: US Geological Survey
Country: United States
Year: 1951
Series: AK Recon Topo 250
Map Type: Topographic
Scale: 1:250,000
Map of Seguam
Smithsonian Sample Collections Database

There are no samples for Atka in the Smithsonian's NMNH Department of Mineral Sciences Rock and Ore collection.

Affiliated Sites