Mount Isarog

Mount Isarog
Mt. Isarog viewed from Baao, Camarines Sur
Highest point
Elevation2,011.6 m (6,600 ft)[1][2]
Prominence1,951 m (6,401 ft)[1]
Parent peakMayon
Listing
Coordinates13°39′33″N 123°22′24″E / 13.65917°N 123.37333°E / 13.65917; 123.37333[1][3]
Geography
Mount Isarog is located in Luzon
Mount Isarog
Mount Isarog
Location in Luzon
Mount Isarog is located in Philippines
Mount Isarog
Mount Isarog
Location in the Philippines
Map
CountryPhilippines
RegionBicol Region
ProvinceCamarines Sur
City/municipality
Geology
Mountain typeStratovolcano
Volcanic arc/beltBicol Volcanic Chain
Last eruption2,374 BCE ± 87 years [4]
3,500 BCE ± 125 years (5,500 ya ± 125 years)[5]
Climbing
Easiest routeConcosep, Tigaon, Camarines Sur Route

Mount Isarog is an active[6] stratovolcano located in the province of Camarines Sur, Philippines, on the island of Luzon. The mountain has active fumaroles and hot springs.[7][8] It has an elevation of 2,011.6 m (6,600 ft) above mean sea level.[9]

The broad isthmus between Lagonoy Gulf and San Miguel Bay is occupied by the isolated Mount Isarog volcano.

The volcano has a 2,500 m (8202 ft) crater that is breached to the east along a narrow valley drained by the Cabongaan water stream. A major debris avalanche deposit extends northwest to the coast and into San Miguel Bay.[10]

The peak of the mountain marks the point where the borders of six municipalities and one city meet (listed in clockwise direction, starting north): Goa, Tigaon, Ocampo, Pili, Naga City, Tinambac and Calabanga.

Mount Isarog was where local troops of the Philippine Army and Constabulary units and Bicolano guerrillas hid during the Japanese Occupation. In the 1970s, with the leadership of Romulo Jallores and his brother, they established the New People's Army in the Bicol region at the foot of this mountain.[9]

  1. ^ a b c "Philippines Mountains" - Ultra Prominence Page. Peaklist.org. Retrieved March 30, 2012.
  2. ^ "Mount Isarog, Philippines". Peakbagger.com. Retrieved March 30, 2012.
  3. ^ "Isarog". Global Volcanism Program. Smithsonian Institution. Retrieved July 30, 2020.
  4. ^ Jonas Cabiles Soltes. "It is official: Mt. Isarog is active".
  5. ^ Smithsonian Institution. "Isarog". Retrieved June 16, 2021.
  6. ^ Philippine Institute of Volcanology and Seismology (2018). "Volcanoes of the Philippines".
  7. ^ Awakening of two old volcanoes in Luzon, Philippine Islands. v. 6. Bulletin of the Seismological Society of America. December 1916. pp. 236–240.
  8. ^ "Isarog". www.volcanodiscovery.com. Retrieved January 5, 2021.
  9. ^ a b Gerona, Danillo (June–July 1993) [1993]. "Isarog Through the Years". The Bikol Executive. Vol. 1. pp. 21–22.
  10. ^ "Global Volcanism Program | Isarog". Smithsonian Institution | Global Volcanism Program. Retrieved January 22, 2021.

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