Kupreanof

Photo of this volcano
  • United States
  • Alaska
  • Stratovolcano
  • 1987 CE
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 56.011°N
  • 159.797°W

  • 1895 m
    6216 ft

  • 312060
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

Most Recent Bulletin Report: March 1987 (SEAN 12:03) Citation IconCite this Report


Steam and ash emission from solfatara field

On 10 March at about 1200 MarkAir pilot Jerry Chisum observed ash and steam emission from a solfatara field on the SSW flank (at 56.00°N, 159.81°W). The steam dissipated within 2 km of the solfatara field, but a grayish-brown ash horizon extended about 15 km N at 1,800 m altitude. On 17, 22, and 26 March Chisum made close observations of the region and noted only normal steam emissions. No previous eruptions are known in historical time.

Information Contacts: J. Reeder, ADGGS.

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

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.

03/1987 (SEAN 12:03) Steam and ash emission from solfatara field




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


March 1987 (SEAN 12:03) Citation IconCite this Report


Steam and ash emission from solfatara field

On 10 March at about 1200 MarkAir pilot Jerry Chisum observed ash and steam emission from a solfatara field on the SSW flank (at 56.00°N, 159.81°W). The steam dissipated within 2 km of the solfatara field, but a grayish-brown ash horizon extended about 15 km N at 1,800 m altitude. On 17, 22, and 26 March Chisum made close observations of the region and noted only normal steam emissions. No previous eruptions are known in historical time.

Information Contacts: J. Reeder, ADGGS.

The Global Volcanism Program has no synonyms or subfeatures listed for Kupreanof.

Eruptive History


There is data available for 1 Holocene eruptive periods.


Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1987 Mar 10 1987 Mar 10 Confirmed 1 Historical Observations SSW flank (1575 m)

Deformation History


There is data available for 2 deformation periods. Expand each entry for additional details.


Deformation during 2002 - 2003 [Uplift; Observed by InSAR]

Start Date: 2002 Stop Date: 2003 Direction: Uplift Method: InSAR
Magnitude: 5.000 cm Spatial Extent: Unknown Latitude: Unknown Longitude: Unknown

(Left column) observed (left) and (right column) best-fit synthetic interferograms of Mount Kupreanof produced from images acquired along ERS track 358 for the following time periods: (top row) 01 October 1999?24 September 2004 and (bottom row) 20 September 2002?25 August 2006. Both sets of images show an inflation episode that occurred sometime during 25 October 2002?27 June 2003. The synthetic interferograms were produced using the corresponding best-fit Mogi source models. Each fringe (full color cycle) represents 2.83 cm of range change between the ground and the satellite. Areas lacking 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 1992 - 2010 [Subsidence; Observed by InSAR]

Start Date: 1992 Stop Date: 2010 Direction: Subsidence Method: InSAR
Magnitude: Unknown Spatial Extent: Unknown Latitude: Unknown Longitude: Unknown

(Top row) Averaged interferograms of Mount Kupreanof produced by stacking all coherent images from two ERS tracks and two Envisat tracks. Constituent SAR images collectively span 1992?2010, excluding October 2002?June 2003 when an episode of surface uplift occurred (Figs. 6.282 and 6.283). At other times, the surface subsided slowly as shown here. (Bottom row) Synthetic interferograms calculated from best-fit Mogi source models for the corresponding averaged interferograms above. A full cycle of colors (i.e., one interferometric fringe) represents 10 mm/year of surface displacement along the LOS. Areas lacking 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.

Emission History


There is no Emissions History data available for Kupreanof.

Photo Gallery


Steam plumes (center) rise from a prominent fumarole on the upper SSW flanks of Kupreanof volcano. The 1895-m-high stratovolcano is the largest and NE-most of a group of five relatively closely spaced Quaternary volcanic centers opposite Stepovak Bay. The only known historical activity from Kupreanof consisted of minor steam and ash emission that was reported from the SSW-flank solfatara field in 1987.

Photo by Tom Miller, 1973 (U.S. Geological Survey, Alaska Volcano Observatory).
See title for photo information.

Smithsonian Sample Collections Database


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

Affiliated Sites