Sempu

Photo of this volcano
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  • Indonesia
  • Indonesia
  • Caldera
  • Unknown - Unrest / Holocene
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 1.13°N
  • 124.758°E

  • 1549 m
    5081 ft

  • 266040
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Sempu.

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

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

The 1549-m-high Sempu stratovolcano was constructed within the 3-km-wide Sempu caldera. Kawah Masem maar was formed in the SW part of the caldera and contains a crater lake. No historical eruptions are known from Sempu. Sulfur has been extracted from fumarolic areas in the maar since 1938.

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
[ 1819 ] [ Unknown ] Uncertain    

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

Sempoe

Craters

Feature Name Feature Type Elevation Latitude Longitude
Masem, Kawah Crater
Walelang Crater
The broad 1549-m-high Sempu stratovolcano (background) is seen here from the summit of neighboring Soputan volcano. The prominent cone in the center is Aeseput, a 20th-century cone constructed on the NW flank of Soputan. Gunung Sempu volcano was constructed within a 3-km-wide caldera. Kawah Masem maar was formed in the SW part of the caldera and contains a crater lake and fumarolic areas that have been the site of sulfur extraction. No historical eruptions are known from Sempu.

Photo by Ruska Hadian, 1973 (Volcanological Survey of Indonesia).

The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title.

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

Volcano Types

Caldera
Stratovolcano
Maar

Tectonic Setting

Subduction zone
Continental crust (> 25 km)

Rock Types

Major
No Data (checked)

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
263,169
263,169
507,642
1,671,136

Affiliated Databases

Large Eruptions of Sempu 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).
Smithsonian Collections Search the Smithsonian's NMNH Department of Mineral Sciences collections database. Go to the "Search Rocks and Ores" tab and use the Volcano Name drop-down to find samples.