Full glossary

Nazko is a small, tree-covered cinder cone in central British Columbia, Canada, located approximately 75 km west of Quesnel. It last erupted about 5220 years ago (radiocarbon dated).

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Ndete Napu is no volcano as such, but a fumarole field along the Lowomelo river valley in central Flores Island. It formed between 1927-29. In 1932 it contained mud pots and high-pressure geysers. There have been no volcanic eruptions in the area in recorded history and the age of the volcanic rocks of the area is unknown.

Il Nèbrodi sono una montagna gamma costa settentrionale della Sicilia, tra la Berge il Peloritan e le catene montuose delle Madonie. Essi rappresentano la più giovane e più grande delle tre riserve naturali siciliane. Dolci colline, ampie distese di foresta, prati di montagna e laghi, castelli e villaggi isolati caratterizzano il paesaggio.

Nemrut Dağ (or Nemrut Dagi) volcano is the westernmost of a group of volcanoes near Lake Van in eastern Anatolia, and the only one that has erupted in historical time. It contains a 9 x 5 km caldera partially filled on its western side by a caldera lake.

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Newberry volcano east of the Cascade Range in Oregon, is one of the largest volcanoes on the US mainland. It covers about 1600 km2 and contains a large caldera, Newberry Crater, that was created several 100,000 years ago by a series of devastating eruptions.
The volcano last erupted about 1300 years ago, blasting a plug of viscous lava and creating the well-known "Big Obsidian Flow."

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Ngauruhoe (pronouned "Nauruhó"), a steep 600 m tall stratovolcano 17 km NNE of Ruhapehu volcano, is the main vent of Tongariro volcano and one of New Zealand's most active volcanoes. Its last eruptive phase in 1975-77 produced violent ash explosions, lava fountains and pyroclastic flows. In its recent past, Ngauruhoe has been erupting around every 10 years and the time lapsed since then makes this the longest repose interval known in its recorded history.

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Nieuwerkerk has been described as a submarine volcano with two summits 7 km apart along a NNW-SSE-trending ridge in the western part of the Banda Sea, but there is no certainty whether a submarine volcano actually exists in this location... Eruptions might have occurred sometime before 1893, and in 1925 and 1927. (Source: GVP)

Nila stratovolcano forms a small 5x6 km island in the Banda Sea, Indonesia. It has a low caldera breached at sea level on the south and east. In its center, Laworkawra, a 781 m high vegeted cone, forms the most recent volcanic edifice. Fumaroles are located on the SE flank of the cone. Historic activity were summit and flank fissure eruptions. An eruption in 1932 from a fissure that extended from the summit to the SE coast produced heavy ashfall and forced the abandonment of Rumadai village.
Nila is cut by a deep erosion gully on the SW side. Submarine vents are found north and west of Nila Island, where gas bubbles are seen escaping at depths of 20-30 m.

Nisiros è un'isola del Dodecaneso e uno dei vulcani attivi della Grecia

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Novarupta, Alaska, 1912: il nome di sfiato dell'eruzione più grande del XX secolo. Situato nei pressi di Katmai vulcano, eruzione del prodotto 21 chilometri cubi (5 km cubi) di materiale vulcanico. Flusso piroclastico piena valle di dieci mila fumi, e quanto più 0,3 metri (1 piede) di cenere cadde 161 chilometri (100 km) di distanza. L'eruzione causò il crollo del vertice del vulcano Katmai per formare una caldera.

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Nyiragongo (also spelled Niragongo), one of the world's most beautiful and active volcanoes, is a large stratovolcano near Lake Kivu at the eastern border of DRCongo with Rwanda in the Virunga National Park.
It has a 1.2 km diameter summit caldera containing the world's most active and largest lava lake.
Nyiragongo is infamous for its extremely fluid lava that runs as water when the lava lake drains. On January 17, 2002, Nyiragongo erupted and the lava lake drained from fissures on its western flanks. The city centre of the Goma town, the capital of the East Virunga province, had been destroyed by voluninous lava flows. 200,000 people were left homeless, adding to the human desaster caused by frequent civil wars.

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