Global Volcanism Program

The Global Volcanism Program has no activity reports available for Inierie.

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

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

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

Ineri | Rokka Peak | Roka Piek | Inie Rie

Cones

Feature Name

Feature Type

Elevation

Latitude

Longitude

Becu, Wolo

Cone

1360 m

8° 51' 25" S

120° 58' 50" E

Bobo, Wolo

Cone - Crater

1586 m

8° 50' 10" S

120° 59' 1" E

Bombara, Wolo

Cone

1437 m

8° 49' 41" S

120° 59' 51" E

Kapa, Wolo

Cone

1448 m

8° 49' 9" S

121° 0' 13" E

Lele, Wolo

Cone - Crater

1556 m

8° 48' 40" S

121° 0' 47" E

Manulalu
Manoelaloe

Cone

1495 m

8° 51' 18" S

120° 59' 18" E

Nawa, Wolo

Cone

1442 m

8° 49' 39" S

121° 1' 41" E

Pore, Wolo

Cone

1217 m

8° 49' 14" S

121° 3' 0" E

Puti, Wolo

Cone

1491 m

8° 51' 4" S

120° 59' 4" E

Sasa, Wolo

Cone

1252 m

8° 48' 57" S

121° 3' 23" E

Soge, Wolo

Cone - Crater

1445 m

8° 50' 4" S

121° 1' 56" E

Craters

Feature Name

Feature Type

Elevation

Latitude

Longitude

Gema, Wolo

Crater

1485 m

8° 50' 33" S

120° 58' 59" E

Thermal

Feature Name

Feature Type

Elevation

Latitude

Longitude

Bajawa

Thermal

Mataloko

Thermal

900 m

Nage

Thermal

520 m

Basic Data

Volcano Number

Last Known Eruption

Elevation

Latitude
Longitude

264080

8050 BCE

2,245 m / 7,365 ft

8.875°S
120.95°E

Morphology

Volcano Landform
Composite

Volcano Types
Stratovolcano
Pyroclastic cone(s)

Rock Types

Major
Andesite / Basaltic Andesite
Basalt / Picro-Basalt

Tectonic Setting

Subduction zone
Crustal thickness unknown

Population

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

1,073
7,501
101,938
809,293

Geological Summary

The symmetrical Gunung Inierie stratovolcano in south-central Flores overlooks the Sawu Sea, and is the highest volcano on the island. A small steep-walled crater is oriented E-W immediately east of the summit, 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 is just to the NE, including Wolo Bobo; these are part of the Pleistocene Bajawa cinder cone complex. 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 on the northern flank of the volcano, and additional geothermal areas are located to the E and NE.

References

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. Volcanol. Geotherm. Res., 32: 137-160.

Eruptive History

There is data available for 1 confirmed Holocene eruptive periods.

8050 BCE (?) Confirmed Eruption

Episode 1 | Eruption

NE side (Wolo Bobo)

8050 BCE (?) - Unknown

Evidence from Isotopic: 14C (uncalibrated)

List of 2 Events for Episode 1 at NE side (Wolo Bobo)

	Start Date	End Date	Event Type	Event Remarks
	- - - -	- - - -	Explosion
	- - - -	- - - -	Tephra

Deformation History

There is no Deformation History data available for Inierie.

Emission History

There is no Emissions History data available for Inierie.

Photo Gallery

Gunung Inierie, seen here from the SE, is the highest volcano on Flores Island. A plume was noted in June 1911 and is sometimes visible from the crater on the eastern side of the summit.

Photo by Tulus, 1990 (Volcanological Survey of Indonesia).

Inierie, the highest volcano on Flores Island, rises above hilly terrain of the central highlands below its northern flank. It has an elliptical crater immediately E of its summit that occasionally produces plumes.

Photo by E. Weissenborn (published in Kemmerling 1929, "Vulkanen van Flores," courtesy of Volcanological Survey of Indonesia).

The Inielika chain of cones and craters stretches across the central highlands of Flores Island at right in this view from the NE. The peak at left center is Gunung Inierie volcano, the highest on the island. On the far left horizon is Wolo Bobo, a feature of the Bajawa cinder cone complex. The high irregular peak on the right horizon is part of the Lobobutu caldera wall, with various Inielika craters in the foreground.

Photo published in Kemmerling 1929, "Vulkanen van Flores" (courtesy of Volcanological Survey of Indonesia).

Gunung Inierie, seen here from the N, is the highest volcano on Flores Island. A plume was observed in June 1911 and is sometimes visible from the crater on the eastern side of the summit.

Photo by Volcanological Survey of Indonesia.

Two of the many summit craters of Inielika can be seen in the left foreground. It is a broad, low volcano in central Flores Island that was constructed within the Lobobutu caldera. The complex summit includes ten craters, some of which contain lakes. A phreatic explosion that formed a new crater in 1905 was the volcano's only eruption during the 20th century. Inierie volcano is the prominent peak on the right horizon.

Photo by Volcanological Survey of Indonesia.

GVP Map Holdings

Maps are not currently available due to technical issues.

Smithsonian Sample Collections Database

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

External Sites

Copernicus Browser

The Copernicus Browser replaced the Sentinel Hub Playground browser in 2023, to provide access to Earth observation archives from the Copernicus Data Space Ecosystem, the main distribution platform for data from the EU Copernicus missions.

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.

MODVOLC Thermal Alerts

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.

WOVOdat
   Single Volcano View
   Temporal Evolution of Unrest
   Side by Side Volcanoes

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.

GVMID Data on Volcano Monitoring Infrastructure The Global Volcano Monitoring Infrastructure Database GVMID, is aimed at documenting and improving capabilities of volcano monitoring from the ground and space. GVMID should provide a snapshot and baseline view of the techniques and instrumentation that are in place at various volcanoes, which can be use by volcano observatories as reference to setup new monitoring system or improving networks at a specific volcano. These data will allow identification of what monitoring gaps exist, which can be then targeted by remote sensing infrastructure and future instrument deployments.

Volcanic Hazard Maps

The IAVCEI Commission on Volcanic Hazards and Risk has a Volcanic Hazard Maps database designed to serve as a resource for hazard mappers (or other interested parties) to explore how common issues in hazard map development have been addressed at different volcanoes, in different countries, for different hazards, and for different intended audiences. In addition to the comprehensive, searchable Volcanic Hazard Maps Database, this website contains information about diversity of volcanic hazard maps, illustrated using examples from the database. This site is for educational purposes related to volcanic hazard maps. Hazard maps found on this website should not be used for emergency purposes. For the most recent, official hazard map for a particular volcano, please seek out the proper institutional authorities on the matter.

IRIS seismic stations/networks

Incorporated Research Institutions for Seismology (IRIS) Data Services map showing the location of seismic stations from all available networks (permanent or temporary) within a radius of 0.18° (about 20 km at mid-latitudes) from the given location of Inierie. Users can customize a variety of filters and options in the left panel. Note that if there are no stations are known the map will default to show the entire world with a "No data matched request" error notice.

UNAVCO GPS/GNSS stations

Geodetic Data Services map from UNAVCO showing the location of GPS/GNSS stations from all available networks (permanent or temporary) within a radius of 20 km from the given location of Inierie. Users can customize the data search based on station or network names, location, and time window. Requires Adobe Flash Player.

DECADE Data

The DECADE portal, still in the developmental stage, serves as an example of the proposed interoperability between The Smithsonian Institution's Global Volcanism Program, the Mapping Gas Emissions (MaGa) Database, and the EarthChem Geochemical Portal. The Deep Earth Carbon Degassing (DECADE) initiative seeks to use new and established technologies to determine accurate global fluxes of volcanic CO₂ to the atmosphere, but installing CO₂ monitoring networks on 20 of the world's 150 most actively degassing volcanoes. The group uses related laboratory-based studies (direct gas sampling and analysis, melt inclusions) to provide new data for direct degassing of deep earth carbon to the atmosphere.

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).

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).