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  • United States
  • Alaska
  • Stratovolcano
  • 500 BCE
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 58.195°N
  • 155.253°W

  • 2165 m
    7101 ft

  • 312150
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Mageik.

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

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

Basic Data

Volcano Number

Last Known Eruption



500 BCE

2165 m / 7101 ft


Volcano Types

Lava dome(s)
Pyroclastic cone(s)

Rock Types

Andesite / Basaltic Andesite

Tectonic Setting

Subduction zone
Continental crust (> 25 km)


Within 5 km
Within 10 km
Within 30 km
Within 100 km

Geological Summary

Mount Mageik is a broad ice-capped stratovolcano at the head of the Valley of Ten Thousand Smokes across Katmai Pass from Trident volcano. Four small overlapping peaks form the broad summit, three of which lie along a NE-SW trend south of the northern peak. The central summit consists of a lava dome, while the east, SW, and north volcanoes are capped by fragmental cones with ice-filled craters. The three westernmost summits are glaciated and of primarily Pleistocene age, but the East Mageik summit cone was the source of at least six Holocene eruptive episodes and fed Holocene lava flows that descended toward Katmai Pass and blanket the NE-to-SE flanks of the volcano. A young, 300-m-wide explosion crater between the east and central summits that formed about 2400-2500 years ago contains a shallow, acidic lake and many superheated fumarole jets. Three Holocene debris avalanches from south-flank failures descended into the Martin Creek drainages, one perhaps reaching the coast. Reports of historical eruptions from Mageik were questioned by Miller et al. (1998) and Hildreth and Fierstein (2000).


The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography.

Coats R R, 1950. Volcanic activity in the Aleutian Arc. U S Geol Surv Bull, 974-B: 35-47.

Fenner C N, 1930. Mount Katmai and Mount Mageik. Zeit Vulk, 13: 1-24.

Fierstein J, 2007. Explosive eruptive record in the Katmai region, Alaska Peninsula: an overview. Bull Volc, 69: 469-509.

Henning R A, Rosenthal C H, Olds B, Reading E (eds), 1976. Alaska's volcanoes, northern link in the ring of fire. Alaska Geog, 4: 1-88.

Hildreth W, 1987. New perspectives on the eruption of 1912 in the Valley of Ten Tousand Smokes, Katmai National Park, Alaska. Bull Volc, 49: 680-693.

Hildreth W, Fierstein J, 2000. Katmai volcanic cluster and the great eruption of 1912. Geol Soc Amer Bull, 112: 1594-1620.

Hildreth W, Fierstein J, Lanphere M A, Siems D F, 2000. Mount Mageik: a compound stratovolcano in Katmai National Park. In: Kelly K D, Gough L P (eds), Geologic Studies in Alaska by the U. S. Geological Survey, 1998 {U S Geol Surv Prof Pap}, 1615: 23-41.

Hildreth W, Lanphere M A, Fierstein J, 2003b. Geochronology and eruptive history of the Katmai volcanic cluster, Alaska Peninsula. Earth Planet Sci Lett, 214: 93-114.

IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior..

Miller T P, McGimsey R G, Richter D H, Riehle J R, Nye C J, Yount M E, Dumoulin J A, 1998. Catalogue of the historically active volcanoes of Alaska. U S Geol Surv Open-File Rpt, 98-582: 1-104.

Motyka R J, Liss S A, Nye C J, Moorman M A, 1993. Geothermal resources of the Aleutian arc. Alaska Div Geol Geophys Surv, Prof Rpt, no 114, 17 p and 4 map sheets.

Smith R L, Shaw H R, Luedke R G, Russell S L, 1978. Comprehensive tables giving physical data and thermal energy estimates for young igneous systems of the United States. U S Geol Surv Open-File Rpt, 78-925: 1-25.

Wood C A, Kienle J (eds), 1990. Volcanoes of North America. Cambridge, England: Cambridge Univ Press, 354 p.

Eruptive History

Summary of Holocene eruption dates and Volcanic Explosivity Indices (VEI).

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
[ 1946 ] [ Unknown ] Uncertain 2  
[ 1936 Jul 4 ] [ 1936 Jul 5 ] Uncertain 2  
[ 1929 Aug 19 ] [ 1929 Dec ] Uncertain 2  
[ 1927 Aug 26 ± 5 days ] [ Unknown ] Uncertain 2  
0500 BCE ± 50 years Unknown Confirmed   Radiocarbon (uncorrected) Between East and Central Mageik
0550 BCE (?) Unknown Confirmed   Radiocarbon (uncorrected) East Mageik
0650 BCE (?) Unknown Confirmed   Radiocarbon (uncorrected) East Mageik
1650 BCE (?) Unknown Confirmed   Radiocarbon (uncorrected) East Mageik
1950 BCE ± 100 years Unknown Confirmed   Radiocarbon (uncorrected) East Mageik, ODLF tephra
4400 BCE ± 300 years Unknown Confirmed   Radiocarbon (uncorrected) East Mageik
7380 BCE ± 150 years Unknown Confirmed   Radiocarbon (corrected) East Mageik
8670 BCE ± 300 years Unknown Confirmed   Radiocarbon (corrected) East Mageik

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

Photo Gallery

Mount Mageik is the broad stratovolcano at the center of this aerial view from the east, south of Katmai Pass. Martin volcano forms the skyline left of Mageik, and lava flows on the flanks of Trident volcano are visible at the middle right. The three volcanoes are part of a NE-SW volcanic chain cutting across Katmai National Park. Much of the surface of Mageik volcano is formed by lava flows of Holocene age. Historical reports of eruptions from both Mageik and Martin are of variable reliability.

Photo by Christina Neal, 1990 (U.S. Geological Survey, Alaska Volcano Observatory).
Mount Mageik (left) and steaming Mount Martin (distant right) tower above the flat-bottomed floor of the Valley of Ten Thousand Smokes (VTTS). The VTTS was formed by ash flows during the 1912 eruption of Novarupta volcano, the Earth's largest eruption of the 20th century. Glacier-clad Mount Mageik has a broad summit capped by 4 knobs, each of which is a spatter and lava-flow vent.

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

Smithsonian Sample Collections Database

A listing of samples from the Smithsonian collections will be available soon.

Affiliated Sites

Large Eruptions of Mageik Information about large Quaternary eruptions (VEI >= 4) is cataloged in the Large Magnitude Explosive Volcanic Eruptions (LaMEVE) database of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).
WOVOdat WOVOdat is a database of volcanic unrest; instrumentally and visually recorded changes in seismicity, ground deformation, gas emission, and other parameters from their normal baselines. It is sponsored by the World Organization of Volcano Observatories (WOVO) and presently hosted at the Earth Observatory of Singapore.
EarthChem EarthChem develops and maintains databases, software, and services that support the preservation, discovery, access and analysis of geochemical data, and facilitate their integration with the broad array of other available earth science parameters. EarthChem is operated by a joint team of disciplinary scientists, data scientists, data managers and information technology developers who are part of the NSF-funded data facility Integrated Earth Data Applications (IEDA). IEDA is a collaborative effort of EarthChem and the Marine Geoscience Data System (MGDS).
MODVOLC - HIGP MODIS Thermal Alert System Using infrared satellite Moderate Resolution Imaging Spectroradiometer (MODIS) data, scientists at the Hawai'i Institute of Geophysics and Planetology, University of Hawai'i, developed an automated system called MODVOLC to map thermal hot-spots in near real time. For each MODIS image, the algorithm automatically scans each 1 km pixel within it to check for high-temperature hot-spots. When one is found the date, time, location, and intensity are recorded. MODIS looks at every square km of the Earth every 48 hours, once during the day and once during the night, and the presence of two MODIS sensors in space allows at least four hot-spot observations every two days. Each day updated global maps are compiled to display the locations of all hot spots detected in the previous 24 hours. There is a drop-down list with volcano names which allow users to 'zoom-in' and examine the distribution of hot-spots at a variety of spatial scales.
MIROVA Middle InfraRed Observation of Volcanic Activity (MIROVA) is a near real time volcanic hot-spot detection system based on the analysis of MODIS (Moderate Resolution Imaging Spectroradiometer) data. In particular, MIROVA uses the Middle InfraRed Radiation (MIR), measured over target volcanoes, in order to detect, locate and measure the heat radiation sourced from volcanic activity.