Laguna Volcanic Field


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. From Manila, it is about southeast to Mount Makiling, its most prominent volcanic feature.
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 in elevation. 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, wide Sampaloc Lake was formed about 500–700 years ago according to local legend, the last major activity in the volcanic field.
Volcanism is still evident through the presence of geothermal areas like mud and hot springs. 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 lists some of the maars and cones situated in the Laguna volcanic field. All are classified as inactive.

Maars

Cones

;Named as hills:
;Named as mountains:
  • Mount Atimla, Nagcarlan
  • Mount Bayaquitos, Nagcarlan
  • Mount Bijiang, Calamba
  • Mount Buboy, Calauan
  • Mount Bulalo, Calauan
  • Mount Cabulugan, Bay
  • Mount Camotes, Calamba
  • Mount Kalisungan, Calauan
  • Mount Lagula, Calauan
  • Mount Lansay, Nagcarlan
  • Mount Luyong, Calauan
  • Mount Mabilog, San Pablo
  • Mount Malauban, San Pablo
  • Mount Malauban-Lansay, San Pablo
  • Mount Mapula, Calauan
  • Mount Masaia, Calamba
  • Mount Obabis, Calauan
  • Mount Olila, Alaminos
  • Mount Tamlong, Calauan