Mount Panay is a potentially active

stratovolcano A stratovolcano, also known as a composite volcano, is a typically conical volcano built up by many alternating layers (strata) of hardened lava and tephra. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile with ...

located in the province of

Batangas Batangas, officially the Province of Batangas ( ), is a first class province of the Philippines located in the southwestern part of Luzon in the Calabarzon region. According to the 2020 census, it has a population of 2,908,494 people, making ...

Philippines The Philippines, officially the Republic of the Philippines, is an Archipelagic state, archipelagic country in Southeast Asia. Located in the western Pacific Ocean, it consists of List of islands of the Philippines, 7,641 islands, with a tot ...

Geography

Panay is located south of

Taal Lake Taal Lake (, ), formerly known as Bombón Lake, is a fresh water Volcanic crater lake, caldera lake in the Provinces of the Philippines, province of Batangas, on the island of Luzon in the Philippines. The lake fills Taal Volcano, a large volc ...

, in the

province A province is an administrative division within a country or sovereign state, state. The term derives from the ancient Roman , which was the major territorial and administrative unit of the Roman Empire, Roman Empire's territorial possessions ou ...

. It is located at the southern end of the Calumpang Peninsula, which forms the western side of

Batangas Bay Batangas Bay is a semi-enclosed body of water situated in the province of Batangas in Luzon island in the Philippines The Philippines, officially the Republic of the Philippines, is an Archipelagic state, archipelagic country in Southea ...

, at latitude 13.723°N (13°43'24"N), longitude 120.893°E (120°53'36"E).

Physical features

Panay is a forested, low,

andesitic Andesite () is a volcanic rock of intermediate composition. In a general sense, it is the intermediate type between silica-poor basalt and silica-rich rhyolite. It is fine-grained (aphanitic) to porphyritic in texture, and is composed predomina ...

stratovolcano, on the western side of Batangas Bay, which could be a breached

caldera A caldera ( ) is a large cauldron-like hollow that forms shortly after the emptying of a magma chamber in a volcanic eruption. An eruption that ejects large volumes of magma over a short period of time can cause significant detriment to the str ...

inundated by the sea. Panay has an elevation of 501 metres (1,644 feet) asl. Panay is reported to be strongly solfataric at present.

Eruptions

Last eruptive activity is thought to be Pleistocene, about 500,000 years ago. There have been no historical eruptions.

Geology

Rock type is predominantly

andesite Andesite () is a volcanic rock of intermediate composition. In a general sense, it is the intermediate type between silica-poor basalt and silica-rich rhyolite. It is fine-grained (aphanitic) to porphyritic in texture, and is composed predomina ...

. Tectonically, Panay lies at the intersection of two major regional trends, the Bataan Lineament and the Palawan-Macolod Lineament. Batangas Bay, which includes Panay, may be a drowned caldera.

Listings

Smithsonian Institution lists Panay as Pleistocene -

Fumarolic A fumarole (or fumerole) is a vent in the surface of the Earth or another rocky planet from which hot volcanic gases and vapors are emitted, without any accompanying liquids or solids. Fumaroles are characteristic of the late stages of volcani ...

. Philippines Institute of Volcanology and Seismology (Phivolcs) lists Panay as ''Inactive''.

References