Buldir

Photo of this volcano
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  • United States
  • Alaska
  • Stratovolcano
  • Unknown - Evidence Uncertain
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 52.35°N
  • 175.911°E

  • 656 m
    2152 ft

  • 311010
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Buldir.

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

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

Basic Data

Volcano Number

Last Known Eruption

Elevation

Latitude
Longitude
311010

Unknown - Evidence Uncertain

656 m / 2152 ft

52.35°N
175.911°E

Volcano Types

Stratovolcano
Lava dome(s)
Maar

Rock Types

Major
Basalt / Picro-Basalt
Andesite / Basaltic Andesite

Tectonic Setting

Subduction zone
Intermediate crust (15-25 km)

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
0
0
0
0

Geological Summary

The westernmost volcanic center of the 2500-km-long Aleutian arc, Buldir consists of the older Buldir volcano at the center of the island and the younger East Cape volcano forming the NE portion of the island. The 656 m high point of the island is a tuff cone that tops the older center. A plug dome forms the 610-m-high summit of East Cape volcano, which has two principal peaks. The youngest volcanic feature on the isolated, 4.2 x 7.2 km island is a lava dome on the SE flank of East Cape volcano. The dome was considered by Coats (1951) to be of Pleistocene age based on morphologic considerations. Smith and Shaw (1975) suggested that the volcano may have been active within the last two thousand years, however, Holocene activity is uncertain, and the volcano may have ceased activity during the Pleistocene (Motyka et al. 1993, Nye et al. 1998). The flora on Buldir is less varied than on neighboring islands, suggesting that Buldir is relatively young.

References

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

Coats R R, 1951. Geology of Buldir Island, Aleutian Islands, Alaska. U S Geol Surv Bull, 989-A: 1-26.

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.

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

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.

Myers J D, 1994. The Geology, Geochemistry and Petrology of the recent Magmatic Phase of the Central and Western Aleutian Arc. Unpublished manuscript, unpaginated.

Nye C J, McGimsey G, Power J, 1998. Volcanoes of Alaska. Alaska Div Geol Geophys Surv, Inf Circ, 38.

Smith R L, Shaw H R, 1975. Igneous-related geothermal systems. U S Geol Surv Circ, 726: 58-83.

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.

The Global Volcanism Program is not aware of any Holocene eruptions from Buldir. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Buldir page in the LaMEVE (Large Magnitude Explosive Volcanic Eruptions) database, a part of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).

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.


Cones

Feature Name Feature Type Elevation Latitude Longitude
East Cape Volcano Stratovolcano 610 m 52° 21' 54" N 175° 56' 24" E

Craters

Feature Name Feature Type Elevation Latitude Longitude
Kittiwake Pond Maar 220 m 52° 23' 0" N 176° 0' 0" E

Photo Gallery


Winter snows drape Buldir, the westernmost Quaternary volcanic center of the 2500-km-long Aleutian arc. Buldir consists of the older Buldir volcano at the center of the island and the younger East Cape volcano forming the NE portion of the island. The age of the most recent eruptions of the volcano is not known precisely, but has been estimated to be late Pleistocene or Holocene.

Photo by Fred Deines, 1987 (U.S. Fish & Wildlife Service).

Smithsonian Sample Collections Database


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

Affiliated Sites

Large Eruptions of Buldir 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.