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Mageik

Photo of this volcano
  • United States
  • Alaska Peninsula Volcanic Arc
  • Composite | Stratovolcano
  • 500 BCE
  • Country
  • Volcanic Province
  • Landform | Volc Type
  • Last Known Eruption
  • 58.195°N
  • 155.253°W

  • 2165 m
    7103 ft

  • 312150
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

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

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

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

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

Eruptive History

There is data available for 8 confirmed Holocene eruptive periods.

[ 1946 ] Uncertain Eruption

Episode 1 | Uncertain Episode
1946 - Unknown Evidence from Unknown
 Coats (1950) listed an uncertain report of a large explosive eruption in 1946. Hildreth (1987) and Miller et al. (1998) doubt the reliability of this report.

List of 2 Events for Episode 1

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion Uncertain
1946    - - - - VEI (Explosivity Index)

[ 1936 Jul 4 - 1936 Jul 5 ] Uncertain Eruption

Episode 1 | Uncertain Episode
1936 Jul 4 - 1936 Jul 5 Evidence from Unknown
 Coats (1950) listed a large explosive eruption during 4-5 July 1936. Miller et al. (1998) and Hildreth and Fierstein (2000) questioned the validity of this eruption.

List of 3 Events for Episode 1

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion Uncertain
   - - - -    - - - - Ash Uncertain
1936 Jul 4    - - - - VEI (Explosivity Index)

[ 1929 Aug 19 - 1929 Dec ] Uncertain Eruption

Episode 1 | Uncertain Episode
1929 Aug 19 - 1929 Dec Evidence from Unknown
 Ward and Matumoto (1967) reported "smoking" on 19 August 1929 and ashfall. Coats (1950) reported that the volcano was active in December 1929. Windblown ash is common in the Katmai area and Hildreth (1987) reported no evidence of deposits from historical eruptions of Mageik.

List of 3 Events for Episode 1

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Ash Uncertain
   - - - -    - - - - Volcanic "smoke" Uncertain
1929 Aug 19    - - - - VEI (Explosivity Index)

[ 1927 Aug 26 ± 5 days ] Uncertain Eruption

Episode 1 | Uncertain Episode
1927 Aug 26 ± 5 days - Unknown Evidence from Unknown
 Jagger (1927) recorded a ship captain's report of a five-day explosive eruption in late August 1927 that deposited ash and pumice in Shelikof Strait. Fenner (1930) considered the report valid, but Hildreth and Fierstein (2000) and Miller et al. (1998) questioned reports of historical eruptions from Mageik.

List of 4 Events for Episode 1

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion Uncertain
   - - - -    - - - - Ash Uncertain
   - - - -    - - - - Pumice Uncertain
1927 Aug 26 ± 5 days    - - - - VEI (Explosivity Index)

0500 BCE ± 50 years Confirmed Eruption  

Episode 1 | Eruption Episode Between East and Central Mageik
0500 BCE ± 50 years - Unknown Evidence from Isotopic: 14C (uncalibrated)

List of 2 Events for Episode 1 at Between East and Central Mageik

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Phreatic activity
   - - - -    - - - - Ash

0550 BCE (?) Confirmed Eruption  

Episode 1 | Eruption Episode East Mageik
0550 BCE (?) - Unknown Evidence from Isotopic: 14C (uncalibrated)

List of 2 Events for Episode 1 at East Mageik

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
   - - - -    - - - - Ash

0650 BCE (?) Confirmed Eruption  

Episode 1 | Eruption Episode East Mageik
0650 BCE (?) - Unknown Evidence from Isotopic: 14C (uncalibrated)

List of 2 Events for Episode 1 at East Mageik

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
   - - - -    - - - - Ash

1650 BCE (?) Confirmed Eruption  

Episode 1 | Eruption Episode East Mageik
1650 BCE (?) - Unknown Evidence from Isotopic: 14C (uncalibrated)

List of 3 Events for Episode 1 at East Mageik

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
   - - - -    - - - - Lava flow
   - - - -    - - - - Ash

1950 BCE ± 100 years Confirmed Eruption  

Episode 1 | Eruption Episode East Mageik, ODLF tephra
1950 BCE ± 100 years - Unknown Evidence from Isotopic: 14C (uncalibrated)

List of 4 Events for Episode 1 at East Mageik, ODLF tephra

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
   - - - -    - - - - Lava flow
   - - - -    - - - - Ash
   - - - -    - - - - Lapilli

4400 BCE ± 300 years Confirmed Eruption  

Episode 1 | Eruption Episode East Mageik
4400 BCE ± 300 years - Unknown Evidence from Isotopic: 14C (uncalibrated)

List of 2 Events for Episode 1 at East Mageik

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
   - - - -    - - - - Ash

7380 BCE ± 150 years Confirmed Eruption  

Episode 1 | Eruption Episode East Mageik
7380 BCE ± 150 years - Unknown Evidence from Isotopic: 14C (calibrated)

List of 2 Events for Episode 1 at East Mageik

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
   - - - -    - - - - Ash

8670 BCE ± 300 years Confirmed Eruption  

Episode 1 | Eruption Episode East Mageik
8670 BCE ± 300 years - Unknown Evidence from Isotopic: 14C (calibrated)

List of 2 Events for Episode 1 at East Mageik

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
   - - - -    - - - - Ash
Deformation History

There is data available for 1 deformation periods. Expand each entry for additional details.


Deformation during 1995 - 2010 [Uplift; Observed by InSAR]

Start Date: 1995 Stop Date: 2010 Direction: Uplift Method: InSAR
Magnitude: Unknown Spatial Extent: 20.00 km Latitude: 58.000 Longitude: -155.000

Remarks: A deformation signal near Martin, Mageik, and Trident volcanoes has been observed with InSAR. There is a gap in InSAR data coverage between 2000 and 2004, but the uplift is likely continuous.

Figure (see Caption)

Averaged deformation images of the Mount Martin?Mount Mageik area produced by stacking high- quality ERS-1 and ERS-2 interferograms for 1995?2000 from two ascending tracks, 021 and 250. Ellipse outlines an area of subsidence near Novarupta dome. A full cycle of colors (i.e., one interferometric fringe) represents 28 mm/year of LOS surface displacement. Areas of loss of InSAR coherence are not colored. See Fig. 6.197 for meanings of labels

From: Lu and Dzurisin 2014.


Reference List: Lu and Dzurisin 2014.

Full References:

Lu Z, Dzurisin D, 2014. InSAR imaging of Aleutian volcanoes: monitoring a volcanic arc from space. Springer-Verlag Berlin Heidelberg. https://doi.org/10.1007/978-3-642-00348-6

Emission History

There is no Emissions History data available for Mageik.

Photo Gallery

Glacier-covered Mount Mageik, seen here from the north, is a broad stratovolcano that is the SW-most of a group of volcanoes encircling Novarupta volcano. Despite its extensive glacial cover, it is only moderately dissected, and most of its exposed lava flows are of Holocene age. Its elongated summit contains four knobs that were spatter and lava-flow vents. Reports of historical eruptions during the 20th century are of variable certainty.

Copyrighted photo by Katia and Maurice Krafft, 1978.
The summit crater of glacier-covered Mount Mageik appears in the foreground of this 1978 view looking NE across Katmai Pass to Trident volcano. These two volcanoes stand guard at the head of the Valley of Ten Thousand Smokes. Mageik's young crater contains a shallow turbulent lake. The fresh, black lava flows descending the SW flank of Trident volcano were emplaced in a series of eruptions during 1953-1966.

Copyrighted photo by Katia and Maurice Krafft, 1978.
Mount Mageik is in the center of this aerial view from the east, south of Katmai Pass. Martin forms the skyline left of Mageik, and lava flows on the flanks of Trident volcano are visible to the middle right. The three volcanoes are part of a NE-SW chain across Katmai National Park. Much of the surface of Mageik is composed of Holocene lava flows.

Photo by Christina Neal, 1990 (U.S. Geological Survey, Alaska Volcano Observatory).
Mount Mageik (left) and Mount Martin (distant right) tower above the flat floor of the Valley of Ten Thousand Smokes. The deposits in the valley are pyroclastic flows that formed during the 1912 eruption of Novarupta, the largest eruption of the 20th century. Glacier-covered Mageik has a broad summit containing multiple cones and vents.

Photo by Game McGimsey (U.S. Geological Survey, Alaska Volcano Observatory).
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

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

External Sites