Full glossary

Only a few eruptions have been recorded from Ibu in historical time, the first was a small explosive eruption from the summit crater in 1911. An eruption producing a lava dome that eventually covered much of the floor of the inner summit crater began in December 1998.

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Volcán en Java Oriental, famosa por su lago ácido y los depósitos de azufre Rico ser extraídos manualmente.

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Frequently active Iliboleng volcano (or Ili Boleng) is located in the SE corner of Adonara Island, across a narrow strait from Lomblen Island and 25 km east of Flores. Iliboleng has 5 partly overlapping summit craters and an irregular profile caused by lava flows.
A cone low on the SE flank, Balile, has also erupted lava flows. Historical eruptions were first recorded in 1885. Frequent eruptions since then consisted of moderate explosive activity. Lava flows were only observed in the eruption of 1888.

Ilikedeka is an eroded older and perhaps extinct volcano near Riang Kotang in eastern Flores, Indonesia. Two solfatara fields are located at the volcano, one near Riang Kotang village, extending over 50 m, and a second field 150 m further to the west. Hot springs are found on the beach of Hading Bay.

Ililabalekan is a steep stratovolcano on a prominent peninsula in SW Lembata (formerly Lomblen) Island. There are no known historic eruptions, but active fumaroles occure near the summit.
Ililabalekan volcano has a flank cone on the SE flank and 4 summit craters, one of which contains a lava dome and two small explosion pits.

Ilimuda volcano, located 6.5 km north of Lewotobi Lakilaki volcano opposite Konga Bay in eastern Flores, has a large 1 km wide and 450 m deep crater breached to the southeast. An active fumarole is found inside the NE crater rim.
A number of flank cones, including the Ilibotong lava dome, are located on the lower SE and NE flanks.

Iliwerung volcano forms a prominent south-facing peninsula on Lembata (Lomblen) Island and lies 80 km east of Flores. Its craters and lava domes have been built along N-S and NW-SE trend. In historical time both vents from the summit and submarine vents on the SE flank have been active.

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Imun is a single small dacitic and/or rhyolitic cone south of Lake Toba with a youthful, undissected morphology, and is considered to be of late-Pleistocene or Holocene age (Aldiss et al., 1983). Source: Smithsonian GVP

Inielika volcano in central Flores is a broad, low volcano constructed within the Lobobutu caldera. It covers an area of 190 sq km. The first historical eruption of Inielika was a phreatic explosion that formed a new crater in 1905.

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Gunung Inierie volcano is an impressive stratovolcano dominating south-central Flores and overlooking the Sawu Sea, and forms the highest peak of Flores. The unvegetated summit has a small steep-walled crater. No historic eruptions are known from the volcano, but there are sometimes reports of "smoke" visible from the crater, as in June 1911. There are hot springs on the northern flank of the volcano and geothermal areas to the east and NE.

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Inyo Craters are a 12-km long field of lava domes at the eastern margin of the Sierra Nevada, California, near the town of Mammoth and south of the similar Mono Craters field. The field contains silicic 6 lava domes, lava flows, and 15 explosion craters (maars) that last erupted about 600 years ago.

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The Ischia volcanic complex forms a rectangular, 6 x 9 km island immediately SW of the Campi Flegrei area at the western side of the Bay of Naples.

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White Island in the Bay of Plenty ca. 50 km off the North Island's east coast is one of New Zealands most active volcanoes, well known for its spectacular crater with strong hydrothermal activity and sulphur deposits. It is part of the active Taupo volcanic zone and last erupted in 2001 (phreatic explosion).

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Iya volcano in central Flores is the southernmost of a group of 3 volcanoes (Iya, Rooia and Pui) forming a small peninsula south of the city of Ende. Rooja and Pui cones to the north appear to be older than Iya and have no known historic activity.
Many small eruptions have occurred at Iya volcano in historic times.

Iyang-Argapura twin volcano is a massive complex in East Java, Indonesia, 25 km NW of the university town of Jember. It dominates the landscape between Raung and Lamongan volcanoes.
It is still considered active, although no eruptions seem to have occurred within the past 500 years at least, and the volcanic complex shows signs of heavy erosion.
Steep valleys and erosion cliffs of up to 1000 m depth cut the base of the older Iyang volcano. The volcano's construction followed a N-S rift-like trend, with overlapping craters and cones forming on this line.
At present, there are only fumaroles in Iyang crater as sign of activity. Uncertain reports might indicate an eruption 1597.