Global Volcanism Program

The Global Volcanism Program has no activity reports for Capital.

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

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

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

Basic Data

Volcano Number

Last Known Eruption

Elevation

Latitude
Longitude

315801

Pleistocene

2356 m / 7730 ft

62.43°N
144.12°W

Volcano Types

Shield

Tectonic Setting

Subduction zone
Continental crust (> 25 km)

Geological Summary

The relatively small Capital Mountain andesitic shield volcano, north of Mount Sanford, contains a 4-km-wide summit caldera apparently of non-explosive origin. Shield and intracaldera lavas and dikes are dated 1-1.1 Ma (Richter, in Wood and Kienle 1990).

References

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

Trop J M, Hart W K, Snyder D, Idleman B, 2012. Miocene basin development and volcanism along a strike-slip to flat-slab subduction transition: Stratigraphy, geochemistry, and geochronology of the central Wrangell volcanic belt, Yakutat–North America collision zone. Geosphere 8:805-834. https://doi.org/10.1130/GES00762.1

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

Eruptive History

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

Deformation History

There is no Deformation History data available for Capital.

Emission History

There is no Emissions History data available for Capital.

Photo Gallery

The Global Volcanism Program has no photographs available for Capital.

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

Title: Map Showing Distribution, Composition, and Age of Late Cenozoic Volcanic Craters in Alaska
Publisher: US Geological Survey
Country: United States
Year: 1986
Series: Misc Investigations
Map Type: Geology
Scale: 1:1,000,000

Map of Map Showing Distribution, Composition, and Age of Late Cenozoic Volcanic Craters in Alaska

Title: Gulkana
Publisher: US Geological Survey
Country: United States
Year: 1985
Series: AK Topo 250
Map Type: Topographic
Scale: 1:250,000

Title: Jet Navigation Chart AK/ Canada
Publisher: DMA Aerospace Center
Country: United States, Canada
Year: 1983
Series: JNC
Map Type: Navigation
Scale: 1:2,000,000

Title: Nabesna
Publisher: US Geological Survey
Country: United States
Year: 1982
Series: AK Topo 250
Map Type: Topographic
Scale: 1:250,000

Title: XSect E Aleut Arc, from Spurr-Aleutian Trench
Publisher: GSA
Country: United States
Year: 1982
Series: MC
Map Type: Geology (Cross-Section)
Scale: 1:250,000

Map of XSect E Aleut Arc, from Spurr-Aleutian Trench

Title: Valdez
Publisher: US Geological Survey
Country: United States
Year: 1981
Series: AK Topo 250
Map Type: Topographic
Scale: 1:250,000

Title: McCarthy
Publisher: US Geological Survey
Country: United States
Year: 1981
Series: AK Topo 250
Map Type: Topographic
Scale: 1:250,000

Title: McCarthy (D-8)
Publisher: US Geological Survey
Country: United States
Year: 1960
Series: 63,360 Topo
Map Type: Topographic
Scale: 1:63,360

Title: Valdez (D-1)
Publisher: US Geological Survey
Country: United States
Year: 1959
Series: 63,360 Topo
Map Type: Topographic
Scale: 1:63,360

Title: Gulkana (A-1)
Publisher: US Geological Survey
Country: United States
Year: 1959
Series: 63,360 Topo
Map Type: Topographic
Scale: 1:63,360

Smithsonian Sample Collections Database

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

External Sites

Sentinel Hub Playground

Sentinel Hub EO Browser

The Sentinel Hub Playground provides a quick look at any Sentinel-2 image in any combination of the bands and enhanced with image effects; Landsat 8, DEM and MODIS are also available. Sentinel Hub is an engine for processing of petabytes of satellite data. It is opening the doors for machine learning and helping hundreds of application developers worldwide. It makes Sentinel, Landsat, and other Earth observation imagery easily accessible for browsing, visualization and analysis. Sentinel Hub is operated by Sinergise

IRIS seismic stations/networks

Incorporated Research Institutions for Seismology (IRIS) Data Services map showing the location of seismic stations from all available networks (permanent or temporary) within a radius of 0.18° (about 20 km at mid-latitudes) from the given location of Capital. Users can customize a variety of filters and options in the left panel. Note that if there are no stations are known the map will default to show the entire world with a "No data matched request" error notice.

UNAVCO GPS/GNSS stations

Geodetic Data Services map from UNAVCO showing the location of GPS/GNSS stations from all available networks (permanent or temporary) within a radius of 20 km from the given location of Capital. Users can customize the data search based on station or network names, location, and time window. Requires Adobe Flash Player.

WOVOdat
   Single Volcano View
   Temporal Evolution of Unrest
   Side by Side Volcanoes

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.

Large Eruptions of Capital

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).

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).