Global Volcanism Program

Most Recent Bulletin Report: August 1991 (BGVN 16:08) Cite this Report

False report of eruption

Widely distributed reports of increased activity and up to 20,000 evacuees in mid-September proved false. Heavy cloud cover over the volcano and coincidental tectonic earthquakes prompted claims of an imminent eruption. PHIVOLCS scientists found no signs of activity, although they did locate a previously unknown geothermal area on a remote section of the volcano.

Information Contacts: D. Sussman, Philippine Geothermal, Inc., Manila; Philippine Daily Inquirer and Manila Times, Manila; Reuters.

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

Bulletin Reports - Index

Reports are organized chronologically and indexed below by Month/Year (Publication Volume:Number), and include a one-line summary. Click on the index link or scroll down to read the reports.

08/1991 (BGVN 16:08) False report of eruption

Information is preliminary and subject to change. All times are local (unless otherwise noted)

August 1991 (BGVN 16:08) Cite this Report

False report of eruption

Widely distributed reports of increased activity and up to 20,000 evacuees in mid-September proved false. Heavy cloud cover over the volcano and coincidental tectonic earthquakes prompted claims of an imminent eruption. PHIVOLCS scientists found no signs of activity, although they did locate a previously unknown geothermal area on a remote section of the volcano.

Information Contacts: D. Sussman, Philippine Geothermal, Inc., Manila; Philippine Daily Inquirer and Manila Times, Manila; Reuters.

The Global Volcanism Program has no synonyms or subfeatures listed for Malindang.

Basic Data

Volcano Number

Last Known Eruption

Elevation

Latitude
Longitude

271071

Unknown - Evidence Credible

2404 m / 7885 ft

8.22°N
123.63°E

Volcano Types

Stratovolcano
Caldera

Rock Types

Major
Basalt / Picro-Basalt
Andesite / Basaltic Andesite

Minor
Dacite

Tectonic Setting

Subduction zone
Continental crust (> 25 km)

Population

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

317
13,659
731,423
4,044,299

Geological Summary

The Pleistocene-to-Holocene Malindang stratovolcano, located on the western margin of Iligan Bay in north-central Mindanao, contains a small summit caldera. Legends record a large eruption from the 2404-m-high, dominantly basaltic-to-andesitic volcano in the past, although no historical eruptions are known (Salise et al., 1991). Reports of increased activity in 1991 at the time of tectonic earthquakes prompted widespread evacuations, but an eruption did not occur, although a previously unknown geothermal area was discovered.

References

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

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

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

Sajona F G, Bellon H, Maury R C, Pubellier M, Cotten J, Rangin C, 1994. Magmatic response to abrupt changes in geodynamic settings: Pliocene-Quaternary calc-alkaline and Nb-enriched lavas from Mindanao, Philippines. Tectonophysics, 237: 47-72.

Sajona F G, Bellon H, Maury R C, Pubellier M, Querbral R D, Cotten J, Bayon F E, Pagado E, Pematian P, 1997. Tertiary and Quaternary magmatism in Mindanao and Leyte (Philippines): geochronology, geochemistry and tectonic setting. J Asian Earth Sci, 15: 121-153.

Salise P C, Manzano J A, Sierra J, Barela H, 1991. Geo-environmental hazard investigation of Malindang Range volcanic complex and risk assessment of town centres, Misamis Occidental. Geol Soc Philippines 4th Ann Geol Conv Abs, p 16-17.

Smithsonian Institution-GVN, 1990-. [Monthly event reports]. Bull Global Volc Network, v 15-33.

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. http://dx.doi.org/10.1029/2003GC00513

Eruptive History

The Global Volcanism Program is not aware of any Holocene eruptions from Malindang. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Malindang page in the LaMEVE (Large Magnitude Explosive Volcanic Eruptions) database, a part of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).

Deformation History

There is no Deformation History data available for Malindang.

Emission History

There is no Emissions History data available for Malindang.

Photo Gallery

The 2435-m-high forested Malindang stratovolcano (center) is located on the western margin of Iligan Bay in north-central Mindanao. The volcano contains a small summit caldera. Legends record a large eruption from Malindang in the past, although no historical eruptions are known. Reports of increased activity in 1991 at the time of tectonic earthquakes prompted widespread evacuations, but an eruption did not occur.

NASA Landsat image, 2002 (courtesy of Hawaii Synergy Project, Univ. of Hawaii Institute of Geophysics & Planetology).

Smithsonian Sample Collections Database

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

Affiliated Sites

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.

Large Eruptions of Malindang

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).

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.

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).