Mandalagan

Photo of this volcano
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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 10.65°N
  • 123.25°E

  • 1885 m
    6183 ft

  • 272030
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Mandalagan.

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

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

The deeply dissected, dominantly andesitic-to-dacitic Mandalagan volcanic complex on northern Negros Island contains a vigorous solfataric area at a highly altered domed structure. The complex consists of seven volcanic centers, including at least five craters and/or calderas up to 2 km in diameter. One solfataric area emits a high-temperature (106 degrees C) plume to 30 m height with a roaring noise like a high-pressure geothermal borehole. The age of the most recent eruptive activity at the 1885-m-high volcano, which produced a thin basaltic lava flow, is not known.

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



Thermal
Feature Name Feature Type Elevation Latitude Longitude
Azufre, Mount Thermal
The deeply dissected, forested Mandalagan volcano on northern Negros Island contains a vigorous solfataric area at a highly altered domed structure. The Bago River at the bottom of the image cuts across the lowlands between Mandalagan and Canlaon volcano, whose vegetated flanks are visible at the bottom center. The city of Bacolod lies along the western coast of the island at the upper left.

NASA Landsat image, 2003 (courtesy of Hawaii Synergy Project, Univ. of Hawaii Institute of Geophysics & Planetology).

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.

COMVOL, 1981. Catalogue of Philippine volcanoes and solfataric areas. Philippine Comm Volc, 87 p.

Del Mundo E T, Arpa M C, 2007. . (pers. comm.).

IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior..

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

Neumann van Padang M, 1953. Philippine Islands and Cochin China. Catalog of Active Volcanoes of the World and Solfatara Fields, Rome: IAVCEI, 2: 1-49.

PHIVOLCS, 2004-. Volcanoes. http://www.phivolcs.dost.gov.ph/Volcanolist/.

Solidum R U, Castillo P R, Hawkins J W, 2003. Geochemistry of lavas from Negros Arc, west central Philippines: insights into the contribution from the subducting slab. Geochem Geophys Geosyst, 4: doi:10.1029/2003GC00513.

von Biedersee H, Pichler H, 1995. The Canlaon and its neighbouring volcanoes in the Negros Belt/Philippines. J Southeast Asian Earth Sci, 11: 111-123.

Volcano Types

Complex
Caldera(s)

Tectonic Setting

Subduction zone
Continental crust (> 25 km)

Rock Types

Major
Andesite / Basaltic Andesite
Dacite
Basalt / Picro-Basalt

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
563
6,491
765,974
9,390,672

Affiliated Databases

Large Eruptions of Mandalagan 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.