Mount Arayat

GeographyEdit

Mount Arayat stands in the middle of the flat Central Luzon Plain, consisting of rice paddies and a typical elevation of about 15 to 35 metres MSL. The mountain is topped by a circular volcanic crater about 1.2 km in diameter, much of which has collapsed on the western and part of the northern rim due to erosion. This has resulted in a breached crater which opens in a west-northwest direction. This area is the apparent source of a major debris-avalanche deposit that forms hummocky terrain beyond the west and northwest sides of the volcano. The 1026-metre summit stands on the northeast side of the breached crater, known as North Peak, while the 984-metre Pinnacle Peak is located on the southeast crater rim. Post-collapse activity formed an andesitic dome known as White Rock in the collapse amphitheater.

EruptionsEdit

There are no cultural records of historical eruptions. However, weak steaming is currently present in some of the heavily eroded vents on the North Western side of the summit. The ancient eruptions were said to have caused the formation of a Lava Dome on the Western Slopes of the mountain known as White Rock which makes a nice tourist destination and is usually a field trip destination for students of Pampanga State Agricultural University. The Arayat amphitheatre is said to have been caused by the summit's collapse on the western side but a much deeper crater is present on the eastern side, it was said that the mountain was once a volcanic island, until eruptions covered the surrounding area with soil, eruptions were said to be the possible cause of a theorized re-route of Pampanga River which is said to have once passed on the western side rather than eastern side where it currently moves.

GeologyEdit

Rock types are basalt and andesite. The only rocks reported to have been dated are 0.53 and 0.65 million-year-old basalts. These predate the crater collapse and formation of the lava dome known as White Rock, which could have occurred in the last 2000 years. The mountain which is believed to be several peaks merged at the top by some local people is actually a Single-Cone Stratovolcano.

Hiking activityEdit

Two trails lead to the peaks of Mount Arayat. Mount Arayat National Park Located at San Juan Baño in Arayat, Pampanga has a trail to the southern Peak, taking around 3–4 hours to reach the peak. The Southern Peak offers views of Central Luzon, including a view of Pampanga River. The collapsed western Slope that forms the other half of its caldera-like crater can also be seen. It offers a view of the mountains of Zambales and Bataan (to the west), and the mountains of the Sierra Madre range (to the east). The northern or higher Peak can be accessed on a route from Pampanga Agricultural College in Magalang, Pampanga, taking a similar time to reach the peak, however, this route takes you through the Arayat Amphitheatre and the so-called White Rock which legend claims to be the Home of Apung/Aring Sinukuan or Sinukuan.

Arayat in FolkloreEdit

The Mountain is said to be the home of the god/sorcerer named Sinukuan/Sinukwan or Sucu, which could mean "The end" or "he who others have surrendered to." The mountain was said to have been located in the swamp to its south but relocated because of the evil ways of those who lived there, in addition to which, the people of the swamp were made to suffer numerous misfortunes. Sinukuan is believed to be able to transform and do as he pleases at will, his only real rival being Namalyari of Mount Pinatubo. The waterfalls at Ayala in Magalang, Pampanga is said to be his bathing quarters, and it is often visited by tourists and natives alike. Sinukuan is said to live at the White rock, a Lava dome possibly formed by the last eruption, where its glimmering properties were most likely to have inspired the legend. Contrary to reality, the mountain is believed to be several mountains merging at the center including the tallest two peaks.

In other legends, Sinukuan is said to have bested Makiling of southern Luzon almost effortlessly unlike his arch rival Namalyari. Sinukuan is believed to have daughters who come down only during time of grace and are disguised as humans, Sinukuan himself can be disguised as human. The day he comes back is believed to either be when he responds to the attack of Namalyari on Mount Pinatubo's 1991 eruption or when the time to call his servants upon the end of the world has come.

ListingsEdit

Fumarole activity is reported on the NW side of the summit.

The Global Volcanism Program lists Mount Arayat as Holocene?

Philippine Institute of Volcanology and Seismology (PHIVOLCS), list Mount Arayat as Inactive.