Ambitle

Photo of this volcano
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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 4.08°S
  • 153.65°E

  • 450 m
    1476 ft

  • 254020
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Ambitle.

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

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

Basic Data

Volcano Number

Last Known Eruption

Elevation

Latitude
Longitude
254020

350 BCE

450 m / 1476 ft

4.08°S
153.65°E

Volcano Types

Stratovolcano
Caldera
Lava dome(s)
Maar

Rock Types

Major
Phono-tephrite / Tephri-phonolite
Trachybasalt / Tephrite Basanite
Trachyandesite / Basaltic trachy-andesite
Basalt / Picro-Basalt
Trachyte / Trachyandesite

Tectonic Setting

Subduction zone
Crustal thickness unknown

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
1,643
9,195
9,779
24,367

Geological Summary

Ambitle is the larger of two adjacent islands forming the Feni Islands, which are located near the SE end of an island chain north and east of New Ireland. This dominantly Pliocene-to-Pleistocene stratovolcano is characterized by a variety of alkalic rocks types. A 3-km-wide central caldera was constructed over Tertiary marine limestone deposits and is occupied by late-Pleistocene trachytic lava domes. A maar on the eastern side of the domes formed about 2300 years ago. Several thermal areas, consisting of hot and boiling springs, mud pools, and low-temperature fumaroles, are found on the western side of the caldera floor and near the western edge of the central lava dome. Shallow-water hydrothermal venting also occurs in a coral reef environment just off the western coast of the island. Babase Island, immediately to the NE of Ambitle, is composed of a Pleistocene stratovolcano and lava dome connected by a narrow isthmus.

References

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

Fisher N H, 1957. Melanesia. Catalog of Active Volcanoes of the World and Solfatara Fields, Rome: IAVCEI, 5: 1-105.

Licence P S, Terrill J E, Fergusson L J, 1987. Epithermal gold mineralization, Ambitle Island, Papua New Guinea. Proc Pacific Rim Cong 1987, 1: 273-278.

Pichler T, Dix G R, 1996. Hydrothermal venting within a coral reef ecosystem, Ambitle Island, Papua New Guinea. Geology, 24: 435-438.

Wallace D A, Johnson R W, Chappell B W, Arculus R J, Perfit M R, Crick I H, 1983. Cainozoic volcanism of the Tabar, Lihir, Tanga, and Feni Islands, Papua New Guinea: geology, whole-rock analyses, and rock-forming mineral compositions. Aust Bur Min Resour Geol Geophys Rpt, 243: 1-62.

Eruptive History


Summary of Holocene eruption dates and Volcanic Explosivity Indices (VEI).


Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
0350 BCE ± 100 years Unknown Confirmed   Radiocarbon (uncorrected) East side of caldera

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

Feni | Anir

Cones

Feature Name Feature Type Elevation Latitude Longitude
Babase Stratovolcano 200 m 4° 2' 0" S 153° 43' 0" E

Thermal

Feature Name Feature Type Elevation Latitude Longitude
Kapkai Thermal
Nanum River Thermal 4° 5' 0" S 153° 38' 0" E
Saddle Thermal
Waramung Plantation Thermal 4° 5' 0" S 153° 38' 0" E

Photo Gallery


Ambitle (left-center) is the larger of two adjacent islands forming the Feni Islands. The 13-km-long Ambitle is a dominantly Pliocene-to-Pleistocene stratovolcano with a 3-km-wide central caldera. A maar on the eastern side of post-caldera lava domes formed about 2300 years ago. Thermal areas are found within the caldera and just off the western coast. Babase Island (right-center), immediately to the NE of Ambitle, is a Pleistocene stratovolcano and lava dome connected by a narrow isthmus.

NASA Space Shuttle image STS88-706-56, 1998 (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 Ambitle 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.