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The Laguna Volcanic Field, also known as the San Pablo Volcanic Field, is an active volcanic field in the Philippines, located between Laguna de Bay, Mount Banahaw volcano complex and Mount Malepunyo range. It is part of the larger Southwestern Luzon Volcanic Field (SWLVF).[2] From Manila, it is about 50 kilometres (31 mi) southeast to Mount Makiling, its most prominent volcanic feature.

Laguna Volcanic Field
San Pablo Volcanic Field
Mount Makiling, the tallest volcano in the Laguna Volcanic Field[1]
Highest point
Elevation1,090 m (3,580 ft)[1]
Coordinates14°07′N 121°18′E
Geography
Laguna Volcanic Field
Location in the Philippines
LocationLuzon, Philippines
Geology
Age of rockQuaternary
Mountain typeVolcanic field
Volcanic arc/beltMacolod Corridor
Last eruption1350 ± 100 years

The field is composed of over 200 dormant and monogenetic maars, crater lakes, scoria cones, and stratovolcanoes, the tallest of which is Mount Makiling at 1,090 m (3,580 ft) in elevation.[1][2] Many of the maars are aligned along a NE-SW trend. Three generations of maars are present, with the oldest being sediment-filled, like the ones found in Calauan. The youngest maars contain deep lakes with many concentrated in the city of San Pablo. The youngest maar, 1.2-kilometre (0.75 mi) wide Sampaloc Lake was formed about 500–700 years ago according to local legend, the last major activity in the volcanic field.[1]

Volcanism is still evident through the presence of geothermal areas like mud and hot springs.[1] The areas south of Mt. Makiling is the site of one of the earliest geothermal plants in the country.


Volcanic features


The Philippine Institute of Volcanology and Seismology (PHIVOLCS) lists some of the maars and cones situated in the Laguna volcanic field. All are classified as inactive.[3]


Maars


Sampaloc Lake maar with (from L to R) Mounts Lagula, Nagcarlan and Atimba in the background. The slope to the right is the base of Mount Banahaw.
Sampaloc Lake maar with (from L to R) Mounts Lagula, Nagcarlan and Atimba in the background. The slope to the right is the base of Mount Banahaw.

Cones


Named as hills
Named as mountains

See also





References


  1. "San Pablo Volcanic Field". Global Volcanism Program. Smithsonian Institution. Retrieved October 11, 2013..
  2. Rene Juna R. Claveria, Teresita R. Perez, etc. "Petrographic Analysis of Rocks and Sediments around the Seven Lakes of San Pablo, Laguna: Implications Regarding Sulfate Distribution and Provenance". Department of Environmental Science, Ateneo de Manila University. Retrieved October 11, 2013.{{cite web}}: CS1 maint: multiple names: authors list (link)
  3. "Inactive Volcanoes – Part 1" Archived September 24, 2015, at the Wayback Machine. Philippine Institute of Volcanology and Seismology. Retrieved on October 13, 2013.


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