Ascension

Photo of this volcano
  • United Kingdom
  • Atlantic Ocean
  • Stratovolcano
  • Unknown - Evidence Credible
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 7.95°S
  • 14.37°W

  • 858 m
    2814 ft

  • 385050
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Ascension.

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

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

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


The Global Volcanism Program is not aware of any Holocene eruptions from Ascension. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Ascension 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 Ascension.

Emission History


There is no Emissions History data available for Ascension.

Photo Gallery


Ascensión Island, located just west of the Mid-Atlantic Ridge, was discovered on Ascención Day, 1501, by the Portuguese navigator Joao da Nova. Today a center for telephone and radio communications and satellite tracking, Ascensión is the summit of a massive stratovolcano rising 3000 m above the sea floor. The isolated island, about 1130 km from the nearest land, has had no historical eruptions, but is dotted with more than 100 youthful parasitic cones and lava domes. Young lava flows can be seen along the NW and SW coasts.

NASA Space Shuttle image, 2003 (http://eol.jsc.nasa.gov/).
See title for photo information.
A view to the NW from Green Mountain shows The Sisters (left) and Perfect Crater (right-center), cinder cones on the flanks of the Ascensión Island volcano, which lies just west of the Mid-Atlantic Ridge. The isolated island is dotted with more than 100 youthful parasitic cones and lava domes, many aligned along two fissures. Although no eruptive activity has occurred since its discovery during the 16th century, many volcanic features on Ascensión have a very youthful appearance.

Photo by Jon Davidson (University of Durham).
See title for photo information.

Smithsonian Sample Collections Database


The following 64 samples associated with this volcano can be found in the Smithsonian's NMNH Department of Mineral Sciences collections, and may be availble for research (contact the Rock and Ore Collections Manager). Catalog number links will open a window with more information.

Catalog Number Sample Description Lava Source Collection Date
NMNH 111123-230 Obsidian -- --
NMNH 111313-1 Granite -- --
NMNH 111313-10 Granite -- --
NMNH 111313-11 Granite -- --
NMNH 111313-12 Granite -- --
NMNH 111313-13 Granite -- --
NMNH 111313-14 Granite -- --
NMNH 111313-15 Granite -- --
NMNH 111313-16 Granite -- --
NMNH 111313-17 Granite -- --
NMNH 111313-18 Granite -- --
NMNH 111313-19 Granite -- --
NMNH 111313-2 Granite -- --
NMNH 111313-20 Granite -- --
NMNH 111313-21 Granite -- --
NMNH 111313-3 Granite -- --
NMNH 111313-4 Granite -- --
NMNH 111313-5 Granite -- --
NMNH 111313-6 Granite -- --
NMNH 111313-7 Granite -- --
NMNH 111313-8 Granite -- --
NMNH 111313-9 Granite -- --
NMNH 112291-1 Granite -- --
NMNH 112292-1 Fumarole Deposit -- --
NMNH 112293-1 Basalt -- --
NMNH 112294-1 Concretion -- --
NMNH 112295-1 Trachyte (?) -- --
NMNH 112296-1 Basalt -- --
NMNH 112297-1 Trachyte (?) -- --
NMNH 112298-1 Basalt -- --
NMNH 112299-1 Granite (?) -- --
NMNH 112300-1 Basalt -- --
NMNH 112302-1 Gneiss -- --
NMNH 112303-1 Gneiss -- --
NMNH 112304-1 Gneiss -- --
NMNH 112305-1 Gneiss -- --
NMNH 112306-1 Gneiss -- --
NMNH 112307-1 Gneiss -- --
NMNH 112308-1 Gneiss -- --
NMNH 112309-1 Gneiss -- --
NMNH 112310-1 Gneiss -- --
NMNH 112311-1 Basalt (?) -- --
NMNH 112312-1 Gneiss -- --
NMNH 112313-1 Gneiss -- --
NMNH 112314-1 Gneiss -- --
NMNH 112315-1 Gneiss -- --
NMNH 112316-1 Gneiss -- --
NMNH 112317-1 Gneiss -- --
NMNH 112318-1 Basalt -- --
NMNH 112319-1 Basalt -- --
NMNH 112320-1 Granite -- --
NMNH 112321-1 Gneiss (?) -- --
NMNH 112322-1 Welded (?) Tuff -- --
NMNH 112323-1 Basalt -- --
NMNH 112324-1 Granite -- --
NMNH 112325-1 Granite -- --
NMNH 113436-1 Obsidian -- --
NMNH 113436-2 Obsidian -- --
NMNH 113436-3 Obsidian -- --
NMNH 113436-4 Obsidian -- --
NMNH 113436-5 Obsidian -- --
NMNH 113436-6 Obsidian -- --
NMNH 116268 Olivine Basalt GREEN MT --
NMNH 36281 Hyalo-Liparite Obsidian -- --

Affiliated Sites