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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 8.875°S
  • 120.95°E

  • 2245 m
    7364 ft

  • 264080
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Inierie.

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

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

Basic Data

Volcano Number

Last Known Eruption



8050 BCE

2245 m / 7364 ft


Volcano Types

Pyroclastic cone(s)

Rock Types

Andesite / Basaltic Andesite
Basalt / Picro-Basalt

Tectonic Setting

Subduction zone
Crustal thickness unknown


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

Geological Summary

The symmetrical Gunung Inierie volcano in south-central Flores overlooks the Sawu Sea, and at 2245 m is the highest volcano on the island. A small steep-walled crater is oriented E-W immediately east of the summit of the conical stratovolcano, whose upper slopes are unvegetated. A somma wall lies west and NW of Inierie (also known as Rokka Peak). A NNW-SSE-trending chain of volcanoes extends from across a low saddle to the NE of Inierie, including 1400-m-high Wolo Bobo. These are part of the Pleistocene Bajawa cinder cone complex, which lies north to east of the volcano. A column of "smoke" is sometimes visible from the crater, as occurred in June 1911. The age of the latest eruption is not known, although the volcano was mapped as Holocene, and an eruption of Wolo Bobo was radiocarbon dated at about 10,000 years ago (Nasution et al., 2000). Hot springs are located at the northern flank of the volcano, and additional geothermal areas are located to the east and NE.


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

Kemmerling G L L, 1929. Vulkanen van Flores. Vulk Seism Meded Dienst Mijnw Ned-Indie, 10: 1-138.

Nasution A, Takashima I, Muraoka H, Takahashi H, Matsuda K, Akasako H, Futagoishi M, Kusnadi D, Nanlohi F, 2000. The geology and geochemistry of Mataloko-Nage-Bobo geothermal areas, central Flores, Indonesia. Proc World Geotherm Cong 2000, Kyushu-Tohoku, Japan, May 28-June 10, 2000, p 2165-2170.

Neumann van Padang M, 1951. Indonesia. Catalog of Active Volcanoes of the World and Solfatara Fields, Rome: IAVCEI, 1: 1-271.

Stolz A J, Varne R, Davies, G R, Wheller G E, Foden J D, 1990. Magma source components in an arc-continent collision zone: the Flores-Lembata sector, Sunda arc, Indonesia. Contr Mineral Petr, 105: 585-601.

Sucipta I G B E, Takashima I, Muraoka H, 2006. Morphometric age and petrological characteristics of volcanic rocks from the Bajawa cinder cone complex, Flores, Indonesia. J Mineral Petr Sci, 101: 48-68.

Sudradjat A, 1977. (pers. comm.).

Wheller G E, Varne R, Foden J D, Abbott M J, 1987. Geochemistry of Quaternary volcanism in the Sunda-Banda arc, Indonesia, and three-component genesis of island-arc basaltic magmas. J Volc Geotherm Res, 32: 137-160.

Eruptive History

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
8050 BCE (?) Unknown Confirmed   Radiocarbon (uncorrected) NE side (Wolo Bobo)

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.


Ineri | Rokka Peak | Roka Piek | Inie Rie


Feature Name Feature Type Elevation Latitude Longitude
Belu Cone
Manoelaloe [Manulalu} Cone
Manulalu Cone
Wolo Bobo Stratovolcano 1400 m


Feature Name Feature Type Elevation Latitude Longitude
Bajawa Thermal
Bobo Thermal 1400 m
Mataloko Thermal 900 m
Nage Thermal 520 m

Photo Gallery

The symmetrical Gunung Inierie volcano, seen here from the SE, is at 2245 m the highest volcano on Flores Island. The unvegetated cone of Inierie here rises steeply above surrounding hills, which are home to the Malay/Melanesian Ngadi, one of the most traditional native peoples on Flores. A column of "smoke," as occurred in June 1911, is sometimes visible from the crater of Inierie, which is on the eastern side of the summit.

Photo by Tulus, 1990 (Volcanological Survey of Indonesia).
The beautifully symmetrical 2245-m-high cone of Inierie, the highest volcano on Flores Island, rises above hilly terrain of the Bajawa Highlands below its northern flank. Inierie has an elliptical crater immediately east of its summit that occasionally produces "smoke" columns.

Photo by E. Weissenborn (published in Kemnerling 1929, "Vulkanen van Flores," courtesy of Volcanological Survey of Indonesia).
The Inielika chain of craters stretches across the Bajawa Highlands in this view from the NE. On the extreme left horizon is Wolo Runu, along the center horizon are the lake-filled Wolo Lega craters with the flat-topped cones of Wolo Itakai and Wolo Ata behind them. On the right horizon is Lobobutu cone. Other craters occupy the foreground. The sharp-topped peak at left center is Gunung Inierie volcano, the highest on the island of Flores.

Photo published in Kemnerling 1929, "Vulkanen van Flores" (courtesy of Volcanological Survey of Indonesia).
The symmetrical Gunung Inierie volcano, seen here from the north, is at 2245 m the highest volcano on Flores Island. The unvegetated cone of Inierie here rises steeply above surrounding hills, which are home to the Malay/Melanesian Ngadi, one of the most traditional native peoples on Flores. A column of "smoke," as occurred in June 1911, is sometimes visible from the crater of Inierie, which is on the eastern side of the summit.

Photo by Volcanological Survey of Indonesia.
Two of the many summit craters of Inielika volcano can be seen in the left foreground. Inielika is a broad, low volcano in central Flores Island that was constructed within the Lobobutu caldera. The complex summit of the 1559-m-high volcano contains ten craters, some of which are lake filled. The first historical eruption of Inielika, a phreatic explosion that formed a new crater, did not occur until 1905 and was the volcano's only eruption during the 20th century. Sharp-topped Inierie volcano is the prominent peak on the right horizon.

Photo by Volcanological Survey of Indonesia.

Smithsonian Sample Collections Database

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

Affiliated Sites

Large Eruptions of Inierie 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.