Photo of this volcano
Google Earth icon
  Google Earth Placemark
  • Indonesia
  • Indonesia
  • Stratovolcano
  • Unknown - Evidence Credible
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 1.08°N
  • 127.42°E

  • 1130 m
    3706 ft

  • 268051
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Jailolo.

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

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

Basic Data

Volcano Number

Last Known Eruption



Unknown - Evidence Credible

1130 m / 3706 ft


Volcano Types


Rock Types

Andesite / Basaltic Andesite
Basalt / Picro-Basalt

Tectonic Setting

Subduction zone
Oceanic crust (< 15 km)


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

Geological Summary

The Jailolo volcanic complex forms a peninsula west of Jailolo Bay on the western coast of Halmahera Island. Jailolo stratovolcano at the center of the complex has youthful lava flows on its eastern flank. Small calderas are located west and SW of Jailolo. The westernmost caldera, Idamdehe, truncates an older twin volcano of Jailolo. Hot springs occur along the NW coast of the caldera. Kailupa cone forms a small volcanic island off the southern coast of the peninsula. Hot mudflows were reported from Jailolo volcano shortly prior to 1883, but no eruptions are known during historical time.


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

Gogarten E, 1918. Die Vulkane der Nordlichen Molukken. Zeit Vulk, 2: 1-298.

Katsui Y (ed), 1971. List of the World Active Volcanoes. Volc Soc Japan draft ms, (limited circulation), 160 p.

Morris J D, Jezek P A, Hart S R, Gill J B, 1983. The Halmahera Island arc, Molucca Sea collision zone, Indonesia: a geochemical survey. In: Hayes D E (ed) The Tectonic and Geologic Evolution of Southeast Asia Seas and Islands, part 2, {Amer Geophys Union, Geophys Monogr}, 27: 373-387.

Supriatna S, 1980. Geologic map of Morotai quadrangle, north Maluku. Geol Res Devel Centre Indonesia, 1:250,000 scale map and 10 p text.

Verstappen H Th, 1964. Some volcanoes of Halmahera (Moluccas) and their geomorphological setting. Ned Aardr Gen, 81: 297-316.

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


Djailolo | Gilolo


Feature Name Feature Type Elevation Latitude Longitude
Kailupa Cone 1° 3' 0" N 127° 24' 0" E


Feature Name Feature Type Elevation Latitude Longitude
Bobopajo Caldera 1° 4' 0" N 127° 23' 0" E
Idamdehe Caldera 1° 5' 0" N 127° 24' 0" E

Photo Gallery

The Jailolo volcanic complex (center) forms a roughly 10-km-long peninsula west of Jailolo Bay (bottom-right) in this NASA Landsat image (with north to the top). Jailolo stratovolcano in the center of the complex is flanked by small calderas to the west and SW. Kailupa cone forms the east side of the small island off the southern coast of the peninsula. Hot mudflows were reported from Jailolo volcano shortly prior to 1883, but no eruptions are known during historical time.

NASA Landsat7 image (worldwind.arc.nasa.gov)

Smithsonian Sample Collections Database

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

Affiliated Sites

Large Eruptions of Jailolo 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.