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Photo of this volcano
  • Philippines
  • Eastern Philippine Volcanic Arc
  • Composite | Stratovolcano
  • Unknown - Evidence Credible
  • Country
  • Volcanic Province
  • Landform | Volc Type
  • Last Known Eruption
  • 13.458°N
  • 123.451°E

  • 1,138 m
    3,734 ft

  • 273041
  • Latitude
  • Longitude

  • Summit

  • Volcano

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

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

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

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.

Eruptive History

There is data available for 0 confirmed Holocene eruptive periods.

[ 1628 ] Discredited Eruption

Slope failure of the SE flank of Iriga that was originally considered to have occurred in 1628 (more probable date) or 1641 CE produced a major debris avalanche which devastated villages at the foot of the volcano and blocked local drainages, forming Lake Buhi. Phreatic eruptions followed the avalanche and produced pyroclastic surge deposits that are mostly confined to the floor of the breached crater (Aguila et al., 1986). Although the date of the debris avalanche is not certain, the 1628 date was considered more probable than the 4 January 1641 date (Aguila et al., 1986), although this date is listed as 4 January 1642 in PHIVOLCS (2004-). The 4 January 1641 date is that of the major eruption of Parker volcano on Mindanao. Later work has shown that Jesuit priests, who would have noted such a dramatic event, were in the area in 1628 CE, so the collapse must have occurred earler during some unknown time in the Holocene (Newhall, 2008 pers. comm.).

Deformation History

There is no Deformation History data available for Iriga.

Emission History

There is no Emissions History data available for Iriga.

GVP Map Holdings

Maps are not currently available due to technical issues.

The maps shown below have been scanned from the GVP map archives and include the volcano on this page. Clicking on the small images will load the full 300 dpi map. Very small-scale maps (such as world maps) are not included.

Smithsonian Sample Collections Database

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

External Sites