Unnamed

No photo available for this volcano
Google Earth icon
  Google Earth Placemark
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 16.992°S
  • 168.592°E

  • 216 m
    708 ft

  • 257080
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Unnamed.

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

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

A group of small islands south of Tongoa Island were considered to be remnants of a once-larger landmass that foundered during the Holocene. Ewose, Buninga, and Tongariki islands, at the southern end of the Shepherd Islands, lie on the rim of a proposed caldera thought to be one of several formed in the central volcanic chain of Vanuatu about 2000 years ago (Crawford et al. 1988, Macfarlane et al. 1988). Eissen et al. (1991) did not find evidence for a caldera at this location. Pyroclastic rocks intruded by dikes are exposed on Ewose, whereas Buninga and Makura are largely composed of tilted lava flows. Tongariki consists of remnants of a basaltic stratovolcano with dacitic pumiceous tuffs in low-lying areas.

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

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

The Global Volcanism Program has no photographs available for Unnamed.

The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title.

Crawford A J, Greene H G, Exon N F, 1988. Geology, petrology and geochemistry of submarine volcanoes around Epi Island, New Hebrides island arc. In: Greene H G and Wong F L (eds) {Geology and Offshore Resources of Pacific Island Arcs--Vanuatu Region}, Circum-Pacific Council Energy Min Resour Earth Sci Ser, 8: 301-327.

Eissen J-P, Blot C, Louat R, 1991. Chronologie de l'activite volcanique historique de l'arc insulaire des Nouvelles-Hebrides de 1595 a 1991. ORSTOM Rapports Sci Tech Sci Terre Geol-Geophys, 2: 1-69.

Macfarlane A, Carney J N, Crawford A J, Greene H G, 1988. Vanuatu--A review of the onshore geology. In: Greene H G and Wong F L (eds) {Geology and Offshore Resources of Pacific Island Arcs--Vanuatu Region}, Circum-Pacific Council Energy Min Resour Earth Sci Ser, 8: 45-91.

Warden A J, 1967b. The geology of the Central Islands. New Hebrides Condominium Geol Surv Reg Rpt, 5: 1-108.

Volcano Types

Stratovolcano(es)
Caldera(?)

Tectonic Setting

Subduction zone
Intermediate crust (15-25 km)

Rock Types

Major
Basalt / Picro-Basalt
Dacite

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
1,101
1,972
6,407
69,711

Affiliated Databases

Large Eruptions of Unnamed 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).
Smithsonian Collections Search the Smithsonian's NMNH Department of Mineral Sciences collections database. Go to the "Search Rocks and Ores" tab and use the Volcano Name drop-down to find samples.