Full glossary

Pacaya volcano near Guatemala City is one of Guatemala's most active volcanoes, and its frequent eruptions are often visible from Guatemala City. Typical activity in recent years includes strombolian activity, lava flow emission and intermittend violent phases of lava fountaining.

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La più vecchia delle due isole vulcaniche storiche nella caldera di Santorini.

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Palomo is a small stratovolcano in central Chile, 130 km south of Santiago, and west of the massive Caldera del Atuel. The summit is largely ice-covered. Its young morphology suggests that its last eruptions are relatively recent, perhaps prehispanic, but there has not been any known historic activity.

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Paluweh volcano (also known as Rokatenda), is the tip of a large, mostly submerged stratovolcano rising 3000 m from the sea floor. It forms a small 8 km wide island with the same name north of Flores Island. Paluweh has a complex summit composed of several overlapping craters and lava domes up to 900 m wide.
Several flank vents were formed by flank eruptions on a NW-trending fissure. The largest historical eruption of Paluweh in 1928 was highly explosive and produced a landslide triggering a tsumani.

The island of Pantelleria is constructed above a drowned continental rift in the Strait of Sicily and has been the locus of intensive volcano-tectonic activity.

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Uno dei vulcani più attivi di Giava Ovest vicino Garut.

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Patah is a heavily forested, dissected Quaternary volcano SE of Dempo volcano.

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Patuha volcano is an old, forest-covered twin volcano with two craters 600 m apart located SW of Bandung city, the capital of West Java. One of its craters is being mined for sulphur.

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Gunung Penanggungan is a small dormant stratovolcano dominating the view from the North coast in the Surabaya area. It is immediately to the north of the higher and more active Arjuno-Welirang twin volcano.
Penanggungan is one of Java's most revered mountains: Ancient Javanese saw in Penanggungan a reflection of the sacred Mahameru of Hindu mythology. There are more than 81 archaeological sites on the mountain, mostly on its northern and western flanks. Ruins of sanctuaries, monuments, and sacred bathing sites of the Hindu period were found, spanning more than 5 centuries from A.D. 977 until 1511.

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Pendan is a little-known volcano in central Sumatra that is listed as an active volcanic center by Rock et al. (1982) and Posavec et al. (1973), with no additional information. Source: Smithsonian GVP

Perbakti volcano is one of a complex of 3 closely located old stratovolcanoes known as the Perbakti-Gagak or Kiaraberes-Gagak volcanic complex situated immediately SW of Salak volcano and near Bogor town.
The 3 volcanoes of the group are, from S to N, Gunung Endut (1474 m), Gunung Perbakti (1699 m), and Gunung Gagak (1511 m).
The complex is hydrothermally very active. Fumaroles, warm spring and boiling mud pools are found on the S and SE sides of the volcano at 950-1300 m elevation. Mild phreatic eruptions took place in historical time from fumarole fields on its flanks.

Perlite è un vetro vulcanico amorfo.

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Peuet Sague is a large volcanic complex that rises to 2801 m in NW Sumatra.

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Vulcanologo brasiliana americano Philip Ong gestisce scoperta vulcano isole Hawaii.

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Heart Peaks shield volcano is located NW of Level Mountain in NW British Columbia, Canada. It is the third largest center in the northern Cordilleran volcanic province. The volcano, covering an area of 275 sq km, last erupted during the last ice ages, and it is uncertain whether there are any younger eruptions in the past 10,000 years.

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Signal Peak is the eroded remnant of a small andesitic stratovolcano overlying the southern part of the basaltic shield of the Lincoln Plateau.
Together with still active Mount Adams volcano to the west and the older Simcoe volcanic field of cinder cones to the east, it is part of a larger volcanic province that has been active for perhaps as much as 5 million years in the area.

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A prominent 2351-m-high stratovolcano occupying the eastern end of Pico Island is the highest volcano in the Azores.

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Piton de la Fournaise, a typical basaltic shield volcano, located on the French island La Réunion, is one of the world's most active and productive volcanoes. It is in a phase of frequent but short-lived eruptions that start with lava fountains and produce large lava flows. Since the active areas of the volcano are not inhabited, its eruptions pose little danger and cause little damage.

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Planchón-Peteroa is an elongated complex volcano along the Chile-Argentina border with several overlapping calderas. It is less than 550,000 years old and was formed by 3 different volcanoes representing different generations of the volcano: Azufre, Planchon and Peteroa.
Peteroa has been active into historical time and contains a small steaming crater lake. Historical eruptions from the Planchón-Peteroa complex have been dominantly explosive, although lava flows were erupted in 1837 and 1937.

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Poco Leok volcano is a statovolcano constructed what might be an irregularly shaped 7 km wide caldera in western Flores Island. The highest peaks on the caldera rim are Mt Lus (1675 m), Mt Sesat, Mt Mompong (1383 m), Mt Pitjong, and Mt Mangung (1379 m). It is believed that the Poco Leok and the caldera are still an active, although no historic eruptions are known. 4 active fumarole fields are found inside the caldera between 825 and 1200 m elevation. The Ulumbu geothermal field on the flank of Poco Leok at 650 m elevation includes hot springs, fumaroles, mud ponds and steam vents.
(Source: GVP)

Popocatepetl is one of Mexico's most active volcanoes. After almost 50 years of dormancy, "Popo" came back to life in 1994 and has since then been producing powerful explosions at irregular intervals.
In the past centuries befor European invasions, large eruptions produced giant mud flows that have buried Atzteque settlements, even entire pyramids.

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Porak volcano is a stratovolcano on the border between Armenia and Azerbaijan, in the Vardeniss volcanic ridge about 20 km SE of Lake Sevan.
The last eruption produced a lava flow around 773-783 AD. Petroglyphs dated to the 5th century BC likely show earlier eruptions of Porak volcano.
The known thermal areas of Jermouk and Histissou are located at 15-20 km distance from Porak volcano.

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Pulosari volcano is an eroded stratovolcano at the west coast of Java and located south of the 15-km-wide Danau caldera. Its summit contains a nearly 300-m-deep crater with active solfataras on its wall. Pulosari volcano is basaltic-to-andesitic in composition and separated from younger and higher Karang volcano by a low saddle.

Pomice è una roccia vulcanica molto leggera, porosa che si forma durante le eruzioni esplosive. Durante l'eruzione vulcaniche disciolti nella parte liquida del magma vischioso verz espandono molto rapidamente per creare una schiuma o schiuma; parte liquida la schiuma poi solidifica rapidamente al vetro intorno le bolle di gas.
Il volume di bolle di gas è di solito così grande che pomice è più leggero dell'acqua e galleggianti.
Pomice è un importante minerale industriale utilizzato per la produzione di cemento di alta qualità e leggero, isolando i materiali da costruzione.

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