Imuruk Lake

Photo of this volcano
Google Earth icon
  Google Earth Placemark
  • United States
  • Alaska
  • Shield(s)
  • 300 CE
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 65.6°N
  • 163.92°W

  • 610 m
    2001 ft

  • 314060
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Imuruk Lake.

The Global Volcanism Program has no Weekly Reports available for Imuruk Lake.

The Global Volcanism Program has no Bulletin Reports available for Imuruk Lake.

Basic Data

Volcano Number

Last Known Eruption

Elevation

Latitude
Longitude
314060

300 CE

610 m / 2001 ft

65.6°N
163.92°W

Volcano Types

Shield(s)
Pyroclastic cone(s)
Lava dome(s)

Rock Types

Major
Basalt / Picro-Basalt

Tectonic Setting

Intraplate
Continental crust (> 25 km)

Population

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

Geological Summary

The Oligocene-to-Holocene Imuruk monogenetic volcanic field in the central Seward Peninsula north of the Bendeleben Mountains contains around 75 small basaltic vents surrounded by voluminous lava flows. The largest and most recent vent is the Lost Jim cone, a 30-m-high cinder cone near Imuruk Lake that produced the only Holocene lava flow of the Imuruk field. The massive Lost Jim lava flow, erupted about 1655 years ago, extends 35 km west and 9 km north of the vent and covers about 230 sq km. The next youngest flow, the late-Pleistocene Camille lava flow, traveled 39 km from its vent.

References

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

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

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

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
0300 (?) Unknown Confirmed   Radiocarbon (uncorrected) Lost Jim Cone

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
Andromeda Cone Cone 346 m 65° 35' 0" N 163° 31' 0" W
Camille Cone Cone 418 m 65° 32' 0" N 163° 23' 0" W
Cassiope Cone Cone 398 m 65° 34' 0" N 163° 26' 0" W
Gosling Cone Cone 479 m 65° 28' 0" N 163° 15' 0" W
Lost Jim Cone 468 m 65° 29' 0" N 163° 17' 0" W
Rhododendron Cone Cone 376 m 65° 32' 0" N 163° 9' 0" W
Twin Calderas Shield volcano 610 m 65° 25' 0" N 163° 10' 0" W

Photo Gallery


The Imuruk Lake volcanic field derives it name from the lake near the center of this NASA Landsat image (with north to the top) of the central Seward Peninsula. The Oligocene-to-Holocene Imuruk monogenetic volcanic field contains around 75 small basaltic vents surrounded by voluminous lava flows. The gray-colored lava flow extending across the left-center portion of this image originated from the Lost Jim cone SW of Imuruk Lake and traveled 35 km to the west. The snow-covered Bendeleben Mountains lie at the bottom of the image.

NASA Landsat7 image (worldwind.arc.nasa.gov)
The Lost Jim lava flow extending to the right across this NASA Landsat image (with north to the top) originated from the Lost Jim cinder cone, SW of Imuruk Lake. The flow was erupted about 1655 years ago and is the only Holocene lava flow of the Imuruk Lake volcanic field. The small 30-m-high cone with a 30-m-wide crater produced a voluminous basaltic lava flow that traveled 35 km to the west and covered an area of about 230 sq km.

NASA Landsat7 image (worldwind.arc.nasa.gov)
Lava flows of the Imuruk Lake volcanic field are seen in this image taken with color infrared film. The Oligocene-to-Holocene Imuruk monogenetic volcanic field in the central Seward Peninsula north of the Bendeleben Mountains contains around 75 small basaltic vents surrounded by voluminous lava flows. The largest and most recent vent is the Lost Jim cone, a 30-m-high cinder cone near Imuruk Lake that produced the only Holocene lava flow of the Imuruk field.

Photo by K.G. Dean, 1980 (Alaska Volcano Observatory/University of Alaska Fairbanks, Geophysical Institute).

Smithsonian Sample Collections Database


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

Affiliated Sites

Large Eruptions of Imuruk Lake 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.