San Pablo Volcanic Field

Photo of this volcano
Google Earth icon
  Google Earth Placemark
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 14.12°N
  • 121.3°E

  • 1090 m
    3575 ft

  • 273060
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for San Pablo Volcanic Field.

The Global Volcanism Program has no Weekly Reports available for San Pablo Volcanic Field.

The Global Volcanism Program has no Bulletin Reports available for San Pablo Volcanic Field.

The San Pablo volcanic field, (also known as the Laguna volcanic field ) lies at the southern end of Laguna de Bay, the largest lake on Luzon Island. The volcanic field contains dozens of scoria cones and maars. Three generations of maars are present, with the oldest being sediment-filled and the youngest containing deep lakes. Many of the maars are aligned along a NE-SW trend. Local legends suggest that the youngest maar, 1.2-km-wide Sampaloc Lake, was formed about 500-700 years ago. The high point of the volcanic field is the eroded Maquiling (Makiling) andesitic-to-rhyolitic stratovolcano, which has a deep crater whose floor is 480 m below its north rim. Maquiling has several parasitic cones, maars, and numerous thermal areas at its northern base. A geothermal project is located on the south flank of Maquiling.

Summary of Holocene eruption dates and Volcanic Explosivity Indices (VEI).

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1350 ± 100 years Unknown Confirmed   Anthropology Sampaloc Lake

This compilation of synonyms and subsidiary features may not be comprehensive. Features are organized into four major categories: Cones, Craters, Domes, and Thermal Features. Synonyms of features appear indented below the primary name. In some cases additional feature type, elevation, or location details are provided.



Synonyms
Laguna Volcanic Field


Cones
Feature Name Feature Type Elevation Latitude Longitude
Atimbia, Mount Cone 14° 9' 4" N 121° 21' 50" E
Bayaquitos, Mount Cone 14° 9' 29" N 121° 23' 38" E
Bubay, Mount Cone 14° 5' 56" N 121° 14' 20" E
Bulalo, Mount Cone 14° 5' 10" N 121° 13' 30" E
Imac Hill Cone 14° 6' 50" N 121° 18' 14" E
Lagula, Mount Cone 14° 7' 34" N 121° 19' 0" E
Mabilog, Mount Cone 14° 8' 2" N 121° 21' 25" E
Maquiling
    Makiling
    Maquilan
    Mainit
    Isuan
Stratovolcano 1090 m 14° 8' 0" N 121° 12' 0" E
Mayondon Point Cone
Mesa, Cerro de La Tuff cone
Nagcarlang, Mount Cone 14° 8' 56" N 121° 20' 35" E
Olila, Mount Cone 14° 5' 0" N 121° 12' 47" E
Pansol
    Panso
Cone
Tamlang, Mount Cone 14° 5' 2" N 121° 14' 42" E


Craters
Feature Name Feature Type Elevation Latitude Longitude
Alligator Lake Maar
Bunot, Lake Maar 14° 4' 59" N 121° 20' 35" E
Calibato, Lake Maar 14° 6' 18" N 121° 22' 37" E
Palacpaquen, Lake Maar 14° 6' 40" N 121° 20' 17" E
Pandi, Lake Maar 14° 6' 58" N 121° 22' 1" E
Sampaloc Lake Maar 14° 4' 44" N 121° 20' 0" E
Yambo, Lake Maar 14° 7' 16" N 121° 21' 54" E


Thermal
Feature Name Feature Type Elevation Latitude Longitude
Natugnos Thermal
Pinagdalan Thermal
Puting Lupa East Thermal
Puting Lupa Southeast Thermal
Alligator Lake, along the southern shore of Laguna de Bay, is one of a group of dozens of maars and scoria cones forming the San Pablo volcanic field (also known as the Laguna volcanic field). Three generations of maars are present, the youngest of which contain deep lakes. Many of the maars are located along a NE-SW trend. Local legends indicate that the most recent eruption occurred about 500-700 years ago at Sampaloc Lake, 17 km SE of Alligator Lake.

Photo by Chris Newhall, 1989 (U.S. Geological Survey).
Local legends suggest that the latest eruption of the Laguna volcanic field took place about 500-700 years ago, forming the Sampaloc Lake maar. This 1.2-km-wide maar, seen here from the south, is one of the largest of a group of 36 maars in the volcanic field, which is located south of Laguna de Bay, a large lake SE of Manila.

Photo by Chris Newhall, 1989 (U.S. Geological Survey).
Forested Maquiling (Makiling) stratovolcano (center) rises south of Laguna de Bay (top) and is the highest point of the San Pablo volcanic field. The andesitic-rhyolitic volcano has a deep crater whose floor is 480 m below its north rim. Maquiling has several parasitic cones, maars, and numerous thermal areas at its northern base, and other maars and scoria cones of the San Pablo volcanic field lie to the east. The prominent dark-colored maar along the shore of Laguna de Bay north of Maquiling is Alligator Lake.

NASA Landsat image, 2002 (courtesy of Hawaii Synergy Project, Univ. of Hawaii Institute of Geophysics & Planetology).
Lake-filled maars are common features of the Laguna volcanic field at the southern end of the large lake of Laguna de Bay (top). The monogenetic volcanic field contains a group of 42 scoria cones and 36 maars, the youngest of which contain deep lakes. The largest maar in this Landsat image is 1.2-km-wide Sampaloc Lake, immediately north of the city of San Pablo. Local legends suggest that this maar was formed about 500-700 years ago. The forested stratovolcano at left is Maquiling volcano.

NASA Landsat image, 2002 (courtesy of Hawaii Synergy Project, Univ. of Hawaii Institute of Geophysics & Planetology).

The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title.

Catane S G, Taniguchi H, Goto A, Givero A P, Mandanas A A, 2005. Explosive volcanism in the Philippines. CNEAS Monograph Ser, Tohoku Univ, 18: 1-146.

COMVOL, 1981. Catalogue of Philippine volcanoes and solfataric areas. Philippine Comm Volc, 87 p.

Defant M J, Maury R C, Ripley E M, Feigenson M D, Jacques D, 1991. An example of island-arc petrogenesis: geochemistry and petrology of the southern Luzon arc, Philippines. J Petr, 32: 455-500.

IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior..

Neumann van Padang M, 1953. Philippine Islands and Cochin China. Catalog of Active Volcanoes of the World and Solfatara Fields, Rome: IAVCEI, 2: 1-49.

Wolfe J A, Self S, 1983. Structural lineaments and Neogene volcanism in southwestern Luzon. In: Hayes D E (ed) {The Tectonic and Geological Evolution of Southeast Asian Seas and Islands: Part 2}, Amer Geophys Union Monograph 27.

Volcano Types

Stratovolcano
Pyroclastic cone(s)
Maar(s)

Tectonic Setting

Subduction zone
Continental crust (> 25 km)

Rock Types

Major
Trachyandesite / Basaltic trachy-andesite
Rhyolite
Trachyte / Trachyandesite
Andesite / Basaltic Andesite

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
1,349,742
1,349,742
3,039,334
24,626,975

Affiliated Databases

Large Eruptions of San Pablo Volcanic Field Information about large Quaternary eruptions (VEI >= 4) is cataloged in the Large Magnitude Explosive Volcanic Eruptions (LaMEVE) database of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).
WOVOdat WOVOdat is a database of volcanic unrest; instrumentally and visually recorded changes in seismicity, ground deformation, gas emission, and other parameters from their normal baselines. It is sponsored by the World Organization of Volcano Observatories (WOVO) and presently hosted at the Earth Observatory of Singapore.
EarthChem EarthChem develops and maintains databases, software, and services that support the preservation, discovery, access and analysis of geochemical data, and facilitate their integration with the broad array of other available earth science parameters. EarthChem is operated by a joint team of disciplinary scientists, data scientists, data managers and information technology developers who are part of the NSF-funded data facility Integrated Earth Data Applications (IEDA). IEDA is a collaborative effort of EarthChem and the Marine Geoscience Data System (MGDS).
Smithsonian Collections Search the Smithsonian's NMNH Department of Mineral Sciences collections database. Go to the "Search Rocks and Ores" tab and use the Volcano Name drop-down to find samples.