Zealandia Bank

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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 16.88°N
  • 145.85°E

  • 0 m
    0 ft

  • 284191
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

17 August-23 August 2005

A seismic swarm that began at Sarigan on 9 August tapered off on 18 August.

Source: Emergency Management Office of the Commonwealth of the Mariana Islands and United States Geological Survey Volcano Hazards Program

Index of Weekly Reports


2005: August

Weekly Reports


17 August-23 August 2005

A seismic swarm that began at Sarigan on 9 August tapered off on 18 August.

Source: Emergency Management Office of the Commonwealth of the Mariana Islands and United States Geological Survey Volcano Hazards Program


10 August-16 August 2005

A seismic swarm was recorded at Sarigan beginning on 9 August. By 14 August, 630 earthquakes had been recorded.

Source: Emergency Management Office of the Commonwealth of the Mariana Islands and United States Geological Survey Volcano Hazards Program


The Global Volcanism Program has no Bulletin Reports available for Zealandia Bank.

Zealandia Bank consists of two pinnacles about 1 km apart rising from a submerged bank to near the sea surface between Guguan and Sarigan Islands. One pinnacle reaches >1 m above water at low tide. Andesitic rocks were dredged at the southern peak, which showed some evidence of coral growth. Freshly broken pahoehoe basaltic rocks were recovered on the western flank of Zealandia Bank. The age of the most recent eruptive activity at Zealandia Bank is not known, but a NOAA bathymetric survey in 2004 detected fumarolic activity.

The Global Volcanism Program is not aware of any Holocene eruptions from Zealandia Bank. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Zealandia Bank 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
Sealandia Bank
Zealandia Bank submarine volcano is seen in this NOAA Vents Program oblique perspective from the SW with two times vertical exaggeration. Zealandia Bank consists of two pinnacles about 1 km apart rising from a submerged bank to near the sea surface between Guguan and Sarigan Islands. The age of the most recent eruptive activity at Zealandia Bank is not known, but a NOAA bathymetric survey in 2004 detected fumarolic activity.

Image courtesy of Susan Merle (Oregon State University/ NOAA Vents Program).

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.

Corwin G, 1971. Quaternary volcanics of the Mariana Islands. Unpublished manuscript, 137 p.

Dixon T H, Stern R J, 1983. Petrology, chemistry, and isotopic composition of submarine volcanoes in the southern Mariana arc. Geol Soc Amer Bull, 94: 1159-1172.

Embley R W, Baker E T, Chadwick W W Jr, Lupton J E, Resing J A, Massoth G J, Nakamura K, 2004. Explorations of Mariana Arc volcanoes reveal new hydrothermal systems. Eos, Trans Amer Geophys Union, 85: 37 and 40.

IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior..

Volcano Types

Stratovolcano

Tectonic Setting

Subduction zone
Crustal thickness unknown

Rock Types

Major
Basalt / Picro-Basalt
Andesite / Basaltic Andesite

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
0
0
0
0

Affiliated Databases

Large Eruptions of Zealandia Bank 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.