Wallis Islands

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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 13.3°S
  • 176.17°W

  • 143 m
    469 ft

  • 244050
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Wallis Islands.

The Global Volcanism Program has no Weekly Reports available for Wallis Islands.

The Global Volcanism Program has no Bulletin Reports available for Wallis Islands.

Basic Data

Volcano Number

Last Known Eruption

Elevation

Latitude
Longitude
244050

Unknown - Evidence Credible

143 m / 469 ft

13.3°S
176.17°W

Volcano Types

Shield(s)
Tuff cone(s)
Pyroclastic cone

Rock Types

Major
Basalt / Picro-Basalt
Trachybasalt / Tephrite Basanite

Tectonic Setting

Subduction zone
Oceanic crust (< 15 km)

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
6,897
15,214
15,342
15,342

Geological Summary

The Wallis Islands consist of one relatively large island, 7 x 14 km Uvea Island, and 22 smaller islands and islets that are surrounded by a barrier reef. The low, forested islands, formed of flat-lying basaltic lava flows that are cut by explosion craters and capped by tuff cones and cinder cones, reach a maximum height of only 143 m above sea level. Numerous small shields (lava cones) and tuff cones are considered on morphological grounds to be of Pleistocene to Recent age (Stearns, 1945). Potassium-Argon ages of dated samples range from 0.5 to 0.08 million years old, but rocks of Pleistocene or Holocene age are present (Price et al., 1991).

References

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

Price R C, Maillet P, McDougall I, Dupont J, 1991. The geochemistry of basalts from the Wallis Islands, northern Melanesian borderland: evidence for a lithospheric origin for Samoan-type basaltic magmas?. J Volc Geotherm Res, 45: 267-288.

Stearns H T, 1945. Geology of the Wallis Islands. Geol Soc Amer Bull, 56: 849-860.

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

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.


Synonyms

Uvea Island | Uea Island

Cones

Feature Name Feature Type Elevation Latitude Longitude
Gahi Tuff cone
Haofa Tuff cone
Lano Cone
Mata Uta Tuff cone
Mckee Cone
Nukuafo Tuff cone
Nukuatea Tuff cone
Nukufutu Tuff cone
Nukutaakimua Tuff cone
Nukutapu Tuff cone
Utuloka Point Cone

Craters

Feature Name Feature Type Elevation Latitude Longitude
Afana Crater - Cone
Ghost Crater - Cone
Lalolalo Crater - Cone
Lanituli Crater - Cone
Lanumahu Crater - Cone
Lanutavake Crater

Photo Gallery


A dramatic barrier reef surrounds the Wallis Islands in this Space Shuttle view (with north to the left). Small explosion craters are visible on 7 x 14 km Uvea Island. Uvea and other low, forested islands are formed of flat-lying basaltic lava flows that are cut by explosion craters and capped by tuff cones and cinder cones. The island rises only 143 m above sea level. The numerous small shields (lava cones) and tuff cones were considered on morphological grounds to have been formed during the Pleistocene and Holocene.

NASA Space Shuttle image ISS002-E-9888, 2001 (http://eol.jsc.nasa.gov/).

Smithsonian Sample Collections Database


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

Affiliated Sites

Large Eruptions of Wallis Islands 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.