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

Most Recent Weekly Report: 17 August-23 August 2005 Cite this Report


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

Weekly Reports - Index


2005: August


17 August-23 August 2005 Cite this Report


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 Cite this Report


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.

Basic Data

Volcano Number

Last Known Eruption

Elevation

Latitude
Longitude
284191

Unknown - Unrest / Holocene

0 m / 0 ft

16.88°N
145.85°E

Volcano Types

Stratovolcano

Rock Types

Major
Basalt / Picro-Basalt
Andesite / Basaltic Andesite

Tectonic Setting

Subduction zone
Crustal thickness unknown

Population

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

Geological Summary

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.

References

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

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 Unpublished manuscript, 137 p.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..

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

Photo Gallery


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).

Smithsonian Sample Collections Database


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

Affiliated Sites

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).
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.