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Edziza

Photo of this volcano
  • Canada
  • Canada and Western USA
  • Stratovolcano
  • 950 CE
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 57.72°N
  • 130.63°W

  • 2786 m
    9140 ft

  • 320060
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Edziza.

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

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

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.

Eruptive History

There is data available for 4 Holocene eruptive periods.

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
0950 ± 6000 years Unknown Confirmed 3 Fission track SW flank of Ice Peak
0610 ± 150 years Unknown Confirmed   Radiocarbon (uncorrected) NNE flank (Williams Cone)
0750 BCE ± 100 years Unknown Confirmed   Tephrochronology
6520 BCE ± 200 years Unknown Confirmed   Radiocarbon (uncorrected) North flank?
Deformation History

There is no Deformation History data available for Edziza.

Emission History

There is no Emissions History data available for Edziza.

Photo Gallery

The Mount Edziza complex, seen here from the east along the Cassiar-Stewart Highway, is part of a large volcanic plateau that is the centerpiece of Mount Ediziza Provincial Park, one of the largest in British Columbia. The complex was constructed over the past 7.5 million years during five magmatic cycles beginning with eruption of alkali basalts and ending with felsic and basaltic eruptions as late about 1000 years ago. Numerous ice-contact features and products of subglacial eruptions are found in the Mount Edziza complex.

Photo by Ben Edwards, 1995 (Dickinson College, Pennsylvania).
See title for photo information.
The central ice-covered summit complex of Mount Edziza is seen here from the SW rising above the Kitsu and Big Raven plateaus. Late-Tertiary lava flows form the foreground. The low conical hills at the base of the icecap are Quaternary volcanic cones. Mount Edziza contains a 2-km-wide, ice-filled caldera that truncates its summit, and numerous ice-contact features and products of subglacial eruptions are found. The complex contains numerous Holocene pyroclastic cones, some of which are younger than about 1300 years.

Photo by Jack Souther, 1992 (Geological Survey of Canada).
See title for photo information.
The snow-covered mountains at the right-center, lying between the Mess Creek (left) and Little Iskut River (right) drainages, are in the Spectrum Range, one of four large composite volcanoes making up the Mount Edziza-Spectrum Range volcanic complex. Holocene pyroclastic cones and lava flows are found on the NW and SW sides of the Spectrum Range. The Mount Edziza complex appears at the top of this image (with north to the upper left), west of snow-covered Nuttlude and Kakiddi lakes. Elongated Kinaskan Lake is at the upper right.

NASA Space Shuttle image STS039-90-110, 1991 (http://eol.jsc.nasa.gov/).
See title for photo information.
Cinder cones, such as Eve Cone on the flanks of Edziza volcano, are formed by the explosive ejection of fragmental material, which accumulates around the vent. This symmetrical cone is part of the Desolation Lava Field on the northern flank of Edziza and is one of the youngest features of the volcano. Basaltic lava flows issued from the base of the cone, which rises about 150 m and has a symmetrical, 45-m-deep crater.

Photo by Ben Edwards, 1995 (Dickinson College, Pennsylvania).
See title for photo information.
GVP Map Holdings

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. The maps database originated over 30 years ago, but was only recently updated and connected to our main database. We welcome users to tell us if they see incorrect information or other problems with the maps; please use the Contact GVP link at the bottom of the page to send us email.


Title: Canada, United States
Publisher: DMA Aerospace Center
Country: United States, Canada
Year: 1989
Series: ONC
Map Type: Topographic
Scale: 1:1,000,000
Map of Canada, United States

Title: Telegraph Creek, Cassiar Dist., British Columbia
Publisher: Canada Map Office Dept. EMR
Country: Canada
Year: 1989
Series: A502
Map Type: Topographic
Scale: 1:250,000
Map of Telegraph Creek, Cassiar Dist., British Columbia

Title: British Columbia Geol Highway Map (4)
Publisher: Ministry of Energy, Mines & Petroleum Resources
Country: Canada
Year: 1981
Series: BC Geol Maps
Map Type: Geology
Scale: 1:2,500,000
Map of British Columbia Geol Highway Map (4)

Title: Dease Lake, Cassiar District, British Columbia
Publisher: Canada Map Office Dept. EMR
Country: Canada
Year: 1977
Series: A502
Map Type: Topographic
Scale: 1:250,000
Map of Dease Lake, Cassiar District, British Columbia

Title: Ketchikan
Publisher: US Geological Survey
Country: United States
Year: 1976
Series: AK Topo 250
Map Type: Topographic
Scale: 1:250,000
Map of Ketchikan
Smithsonian Sample Collections Database

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

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