Full glossary

Fantale (also spelled Fantalle, Fentale, or Fantala) is a large stratovolcano in the Ethiopian Rift Valley west of Lake Awash. It contains a large spectacular summit caldera.
Fantale's historic eruptions produced lava flows that descended to the east side into the valley and lake Awash. An eruption during the 13th century destroyed a town and church located south of the volcano. In 1820, a 4 km long fissure eruption occured on the east flank and sent basaltic lava flows both into the caldera and outside, reaching the bottom of the Rift valley.

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The island of Fayal, also spelled Faial, is the nearest of the central Azorean islands to the Mid-Atlantic Ridge.

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Sibayak volcano belongs to the Singkut caldera in northern Sumatra. It represents one of several cones that grew on or near the southern caldera rim after its formation.

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Flores Island and Corvo Island to its north are located far west of the rest of the Azores islands and are the only two Azorean volcanoes lying west of the Mid-Atlantic Ridge.

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Fluido valanga di frassino turbulently misto, frammenti di lava e o roccia e aria, che scorre lungo i fianchi del vulcano, guidato dalla gravità. Flussi piroclastici sono di solito molto caldo e altamente distruttivo.

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Getti di lava fluida azionato in aria da un'eruzione sfiato, guidato dal gas in espansione.

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Fort Selkirk is a volcanic field near the junction of the Yukon and Pelly rivers in central Yukon. It is the northernmost young volcanic field in Canada.
The volcano consists of large valley-filling lava flows and 3 cinder cones.
The volcanic field developed at the intersection of two prominent fault lines, one running east-west, marked by the Pelly River and the lower Yukon River, and the other one NW-SE, defined by the upper Yukon River.
The first activity of the volcanic field were effusive, valley-filling eruptions of fluid basalt lava, followed by the construction of 3 cinder cones during strombolian-type eruptions and related emplacement of viscous aa lava flows.

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I fossili sono mineralizzati o altrimenti conservati resti o tracce (come orme) di animali, piante e altri organismi.

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L'attività vulcanica dove magma fresca acqua esterno e sono coinvolti.

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Fuego, one of Central America's most active volcanoes, is one of three large stratovolcanoes overlooking Guatemala's former capital, Antigua. It typically has strombolian activity and sometimes phases of intense lava fountaining, producing tall ash plumes and dangerous pyroclastic flows.

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Pleistocene and Holocene cinder cones and lava flows cover large portions of elongated Fuerteventura Island at the SE end of the Canary Islands.

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Furnas volcano lies at the eastern end of Sao Miguel Island, immediately west of the older Nordeste shield volcano and its Povoaçao caldera.

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