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Philippines · Stratovolcano

Mount Bulusan

Bulusan

Type
Stratovolcano
Elevation
1535m
Last eruption
2025
Mount Bulusan
Photo: Audioboss at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons
Type
Stratovolcano
Country
Philippines
Region
Western Pacific / Eastern Philippine Volcanic Arc
Elevation
1535m
Coordinates
12.769, 124.056
Last eruption
2025
Tectonic setting
Subduction zone / Continental crust (> 25 km)
Landform
Composite
Major rock type
Andesite / Basaltic andesite
Geological summary

Luzon's southernmost volcano, Bulusan, was constructed along the rim of the 11-km-diameter dacitic-to-rhyolitic Irosin caldera, which was formed about 36,000 years ago. It lies at the SE end of the Bicol volcanic arc occupying the peninsula of the same name that forms the elongated SE tip of Luzon. A broad, flat moat is located below the topographically prominent SW rim of Irosin caldera; the NE rim is buried by the andesitic complex. Bulusan is flanked by several other large intracaldera lava domes and cones, including the prominent Mount Jormajan lava dome on the SW flank and Sharp Peak to the NE. The summit is unvegetated and contains a 300-m-wide, 50-m-deep crater. Three small craters are located on the SE flank. Many moderate explosive eruptions have been recorded since the mid-19th century.

Eruption history

26 recordedGlossary
Summary (VEI over time)
Click a bar to see individual eruptions · Use arrow keys to move between bars, Enter to open
3050 BCE~2855 BCE · 1 eruptions · max VEI ?854~1049 · 1 eruptions · max VEI ?1830~2025 · 24 eruptions · max VEI 33050 BCE1879 BCE512 BCE6591830

Detailed timeline

  1. 2025VEI 2Observed
    2025-04-28 – 2025-04-29
  2. 2022VEI 2Observed
    2022-06-05 – 2022-06-12
  3. 2017VEI 1Observed
    2017-06-05 – 2017-06-05
    SE Flank Crater area
  4. 2016VEI 2Observed
    2016-02-22 – 2016-02-22
    Summit crater
  5. 2016VEI 2Observed
    2016-06-10 – 2016-12-29
    Upper SE flank and summit vent
  6. 2015VEI 2Observed
    2015-05-01 – 2015-07-17
    Summit crater
  7. 2010VEI 2Observed
    2010-11-06 – 2011-05-13
    Summit crater
  8. 2006VEI 2Observed
    2006-03-21 – 2006-06-28
  9. 2006VEI 2Observed
    2006-10-10 – 2007-10-04
  10. 1994VEI 2Observed
    1994-11-27 – 1995-01-28
  11. 1988VEI 2Observed
    1988-02-20 – 1988-03-08
  12. 1983VEI 2Observed
    1983-06-25 – 1983-06-29
  13. 1981VEI 3Observed
    1981-04-09 – 1981-04-27
  14. 1979VEI 3Observed
    1979-12-27 – 1980-09-28
  15. 1978VEI 2Observed
    1978-07-29 – 1978-08-14
  16. 1933VEI 2Observed
    1933-12-25 – end unknown
  17. 1928VEI 2Observed
    1928-06-16 – end unknown
  18. 1918VEI 2Observed
    1918-10-16 – 1922-05-16
  19. 1916VEI 2Observed
    1916-01-18 – 1916-01-22
  20. 1894VEI 2Observed
    1894-07-02 – end unknown
  21. 1892VEI 2Observed
    1892-07-02 – end unknown
  22. 1889VEI ?Observed
    1889-07-02 – end unknown
  23. 1886VEI 2Observed
    1886-07-02 – end unknown
  24. 1852VEI ?Method not stated
    1852-07-02 – end unknown
  25. 950VEI ?Geological estimate
    950 – end unknown
  26. 3050 BCEVEI ?Geological estimate
    3050 BCE – end unknown

Nearby volcanoes

External links

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