Biliran (volcano)

This article is about the volcano. For the municipality, see Biliran, Biliran. For the province, see Biliran.

Biliran
Biliran Biliran province, Eastern Visayas region, Visayas island group, Philippines
Highest point
Elevation	1,340 m (4,400 ft)
Coordinates	11°39′00″N 124°32′06″E
Geography
Location	Biliran province, Eastern Visayas region, Visayas island group, Philippines
Geology
Age of rock	Quaternary
Mountain type	Complex volcano
Last eruption	26 September 1939

Biliran is an solfataric active volcano located in the island province of Biliran in the Philippines. The volcano caused the formation of the island.

Geological features

• Rock Type: Hornblende andesite containing greenish and black hornblende
• Tectonic Setting: Biliran Volcano is part of the curvilinear belt of Quaternary volcanoes in eastern Philippines, parallel to Phil. Trench to the east

Volcanic activity

• Number of Historical Eruptions: 1
• Latest Eruption/Activity: September 26, 1939
• Site: crater
• Eruption Character: Debris avalanche
• Affected Areas/Remarks: Ashfall at Caibiran and adjoining areas (6.35 cm thick deposits)
• Monitoring activity: Short-term monitoring in 1954

Physical features

• Hotsprings:
  1. Central Biliran - Libtong Thermal Areas (12 hot springs and one bubbling pool)
  2. North Biliran - Panamao Thermal Area
  3. Anas Thermal Area
  4. South Biliran - Kalambis Thermal Area
• Adjacent Volcanic Edifice:
  1. Panamao (107 m asl)
  2. Gumansan (1064 m asl)
  3. Lauan (1187 m asl)
  4. Suiro (1301 m asl)

See also

• List of active volcanoes in the Philippines
• Philippine Institute of Volcanology and Seismology
• List of inactive volcanoes in the Philippines
• List of potentially active volcanoes in the Philippines

References

• "Biliran". Global Volcanism Program. Smithsonian Institution.
• Topo Sheets: 3854 I, 3855 II, 3955 III, 3854 II, 3954 III.

External links

• Philippine Institute of Volcanology and Seismology (PHIVOLCS) Biliran Page
• Biliran Island