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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 9.52°S
  • 150.53°E

  • 200 m
    656 ft

  • 253050
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Iamalele.

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

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

Basic Data

Volcano Number

Last Known Eruption



Unknown - Evidence Credible

200 m / 656 ft


Volcano Types

Lava dome(s)

Rock Types

Andesite / Basaltic Andesite
Basalt / Picro-Basalt

Tectonic Setting

Subduction zone
Continental crust (> 25 km)


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

Geological Summary

An area of youthful volcanism and active thermal fields is located on the SW part of Fergusson Island, in the center of the D'Entrecasteaux island group. The Iamalele-Fagululu area contains a series of lava domes and lava flows of probable Holocene age in association with abundant hot springs and fumaroles (Smith 1981). Two small lava domes are located near Fagululu village, the largest of which is a 150-m-high flat-topped, obsidian-bearing rhyolitic dome. Six other lava domes are clustered around Salt Lake on the western side of the area. Hot springs, boiling springs, fumaroles, and mud pools are found in an area of siliceous sinter near Iamalele village.


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.

Smith I E M, 1981. Young volcanoes in eastern Papua. Geol Surv Papua New Guinea Mem, 10: 257-265.

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


Iamelele | Debawala | Fagululu


Feature Name Feature Type Elevation Latitude Longitude
Debawala Thermal 9° 32' 0" S 150° 32' 0" E
Salt Lake Thermal 74 m 9° 29' 0" S 150° 31' 0" E
Sulphur Lake Thermal 9° 30' 0" S 150° 32' 0" E

Photo Gallery

Late Cenozoic volcanic rocks cover much of the Kukuia Peninsula (left-center) on the SW side of Fergusson Island and areas north of the peninsula. The Iamalele-Fagululu area, located north of the peninsula and south of the Mailolo metamorphic block forming the NW tip of the island, contains a series of lava domes and lava flows and abundant hot springs and fumaroles. Eight small lava domes are located near Fagululu village and around Salt Lake. Young volcanic rocks are also present on Goodenough Island (upper left).

NASA Space Shuttle image STS44-83-80, 1991 (http://eol.jsc.nasa.gov/).

Smithsonian Sample Collections Database

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

Affiliated Sites

Large Eruptions of Iamalele 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.