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Kaguyak

Photo of this volcano
  • Country
  • Volcanic Region
  • Landform | Volc Type
  • Last Known Eruption
  • 58.6113°N
  • 154.0245°W

  • 901 m
    2,956 ft

  • 312250
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports available for Kaguyak.

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

The Global Volcanism Program has no Bulletin Reports available for Kaguyak.

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

Eruptive History

There is data available for 2 confirmed Holocene eruptive periods.

3850 BCE (?) Confirmed Eruption VEI: 5

Episode 1 | Eruption Kaguyak caldera
3850 BCE (?) - Unknown Evidence from Isotopic: 14C (uncalibrated)

List of 5 Events for Episode 1 at Kaguyak caldera

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
   - - - -    - - - - Pyroclastic flow
   - - - -    - - - - Ash
   - - - -    - - - - Caldera Explosion
3850 BCE
(?)
   - - - - VEI (Explosivity Index)

4060 BCE ± 150 years Confirmed Eruption  

Episode 1 | Eruption
4060 BCE ± 150 years - Unknown Evidence from Isotopic: 14C (uncalibrated)

List of 3 Events for Episode 1

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
   - - - -    - - - - Pyroclastic flow
   - - - -    - - - - Lava dome
Deformation History

There is no Deformation History data available for Kaguyak.

Emission History

There is no Emissions History data available for Kaguyak.

Photo Gallery

Kaguyak caldera was formed following powerful dacitic explosive eruptions about 5800 years ago. An extensive apron of pyroclastic-flow deposits surrounds the 2.5-km-wide caldera. This view from the SW shows two post-caldera lava domes that form a peninsula into the lake and another lava dome that forms a small island that rises about 10 m above the center of the lake. The low notch at the far end of the caldera is a pre-caldera stream valley that was beheaded by caldera formation.

Copyrighted photo by Katia and Maurice Krafft, 1978.
The small, but dramatic Kaguyak caldera on the northern Alaska Peninsula contains a lake more than 180-m deep whose surface is 550-m below the caldera rim. Two post-caldera lava domes form the large peak that rises above the rim of the 2.5-km-wide caldera at the right. The small island in the center of the lake is another lava dome. Collapse of the caldera occurred following powerful dacitic explosive eruptions about 5800 years ago. Shelikof Strait is visible at the top of the photo.

Copyrighted photo by Katia and Maurice Krafft, 1978.
The small 2.5-km-wide Kaguyak caldera is filled by a lake that reaches 550 m below the caldera rim, seen here from the west. A lava dome extends into the lake on the SW side and another dome forms a small island in the center of the lake. The voluminous caldera-forming deposits have been radiocarbon dated at 5,800 years old. A large pre-caldera lava dome forms the high point on the eastern caldera rim. The broad valley of Big River descends to Shelikof Strait to the upper right.

Photo by Chris Nye, 1982 (Alaska Division of Geological and Geophysical Surveys, Alaska Volcano Observatory).
Fourpeaked volcano to the upper left is one of a group of volcanoes NE of Katmai National Park, beyond the 2.5-km-wide Kaguyak caldera in the foreground. Much of the surface is hidden beneath Fourpeaked Glacier; the few exposed outcrops are lava flows interlayered with volcanic agglomerate. Deposits near the summit are extensively hydrothermally altered.

Photo by Chris Nye (Alaska Division of Geological and Geophysical Surveys, Alaska Volcano Observatory).
Snow and ice cover the Kaguyak caldera lake in this view from the NW. The caldera formed during a voluminous eruption about 5,800 years ago that produced pyroclastic flows that reached Shelikof Strait. Two lava domes, one large and the other seen just above the center of the lake, were built after the caldera-forming eruption.

Photo by Tom Miller, 1998 (Alaska Volcano Observatory, U.S. Geological Survey).
GVP Map Holdings

Maps are not currently available due to technical issues.

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.

Smithsonian Sample Collections Database

The following 9 samples associated with this volcano can be found in the Smithsonian's NMNH Department of Mineral Sciences collections, and may be availble for research (contact the Rock and Ore Collections Manager). Catalog number links will open a window with more information.

Catalog Number Sample Description Lava Source Collection Date
NMNH 117233-65 Tuff -- --
NMNH 117233-66 Pumice -- --
NMNH 117233-67 Dacite -- --
NMNH 117233-68 Tuff -- --
NMNH 117233-69 Tuff -- --
NMNH 117233-70 Pumice -- --
NMNH 117233-71 Pumice -- --
NMNH 117233-72 Pumice -- --
NMNH 117233-73 Pumice -- --
External Sites