NW Eifuku

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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 21.485°N
  • 144.043°E

  • -1535 m
    -5035 ft

  • 284136
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for NW Eifuku.

The Global Volcanism Program has no Weekly Reports available for NW Eifuku.

The Global Volcanism Program has no Bulletin Reports available for NW Eifuku.

Basic Data

Volcano Number

Last Known Eruption



Unknown - Unrest / Holocene

-1535 m / -5035 ft


Volcano Types


Rock Types

Basalt / Picro-Basalt
Andesite / Basaltic Andesite

Tectonic Setting

Subduction zone
Crustal thickness unknown


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

Geological Summary

NW Eifuku is a small submarine volcano that pales in size in comparison to its larger neighbors, but displays vigorous thermal activity. The summit of the basaltic-to-andesitic Northwest Eifuku volcano lies 1535 m below the sea surface; the seamount lies at the NW end of a chain of submarine volcanoes that includes Eifuku and Daikoko, at the SE end. Hydrothermal fluid emission at NW Eifuku includes liquid carbon dioxide bubbles venting from "white smokers," one of only two places where natural liquid carbon dioxide emission has been observed. The hydrothermal field, named Champagne, was discovered during a 2003 NOAA expedition and lies in the steep headwall of a slope-failure scarp that cuts the summit and SW side of the volcano.


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

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.

Lupton J, Butterfield D, Lilley M, Evans L, Nakamura K, Chadwick W Jr., Resing J, Embley R, Olson E, Proskurowski G, Baker E, de Ronde C, Roe K, Greene R, Lebon G, Young C, 2006. Submarine venting of liquid carbon dioxide on a Mariana Arc volcano. Geochem Geophys Geosyst, 7: Q08007, doi:10.1029/2005GC001152.

NOAA Vents Program, 2004. Submarine ring of fire 2004, Mariana arc submarine volcanoes, R/V Thomas G. Thompson Cruise TN167, March 27 - April 17. NOAA Vents Program final cruise report (http://oceanexplorer.noaa.gov/explorations/04fire/logs/summary/media/marianas2004cruisereport.pdf).

Smithsonian Institution-GVN, 1990-. [Monthly event reports]. Bull Global Volc Network, v 15-33.

Stern R J, Basu N K, Kohut E, Hein J, Embley R W, 2004. Petrology and geochemistry of igneous rocks collected in association with ROV investigations of three hydrothermal sites in the Mariana arc (abs). Eos, Trans Amer Geophys Union, 2004 Fall Mtg, V43F-07.

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


Feature Name Feature Type Elevation Latitude Longitude
Champagne Thermal

Photo Gallery

White smokers rise above chimneys at NW Eifuku submarine volcano, as photographed by a NOAA expedition in 2006. The bubbles are liquid carbon dioxide; Northwest Eifuku is one of two places where natural liquid carbon dioxide emission has been observed. NW Eifuku is a small submarine volcano that pales in size in comparison to its larger neighbors, but displays vigorous thermal activity. The summit of the basaltic Northwest Eifuku volcano lies 1551 m below the sea surface.

Image courtesy of Submarine Ring of Fire 2006 Exploration, NOAA Vents Program.

Smithsonian Sample Collections Database

There are no samples for NW Eifuku in the Smithsonian's NMNH Department of Mineral Sciences Rock and Ore collection.

Affiliated Sites

Large Eruptions of NW Eifuku 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.