Iliboleng Volcan

Updated: 19 avril. 2025 20:17 GMT - refresh

stratovolcano

Petites îles de la Sonde (Indonésie), -8.34°S / 123.26°E

+Heure locale:

Lever du soleil:

Coucher du soleil:

Lever de lune:

Coucher de lune:

Summit height: 1659 m / 5,443 ft

Condition actuelle: normal / en sommeil (1 sur 5)

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.

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News/Updates | Earthquakes

Style éruptif tipique: Explosive
Eruptions du volcan Iliboleng: 1991, 1987, 1986, 1983-84, 1982, 1973-74, 1951, 1950, 1949, 1948, 1944, 1927, 1925, 1909, 1904, 1888, 1885

Derniers séismes proches

Date et l'heure	Mag / Prof.	Distance / Lieux

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Éruptions volcaniques importantes: volcano Iliboleng

In the past 10,000 years, Iliboleng has had at least 20 confirmed eruptions, all documented by historical records or observations.

The table below lists all known eruptions (date in bold face) of Iliboleng volcano in historic times and during the past 10,000 years. Updates on the most recent volcanic activity of Iliboleng can be found on the news page of Iliboleng volcano.

Date	Note	VEI	Dommages
1993 Jun 16 ±15 d. - Jul 16 ±15 d.	Obs./docs historiques	1?	inconnu
1991 Nov 3 - Nov 15	Obs./docs historiques	1	inconnu
1991 Mai 8 - Jun 30 ou plus tard	Obs./docs historiques	1	inconnu
1987 Oct 2	Obs./docs historiques	2	inconnu
1986 Mai 28 - Nov 24	Obs./docs historiques	1	inconnu
1983 Mai 11 - 1984 Avr 13	Obs./docs historiques	2	inconnu
1982 Nov 17	Obs./docs historiques	2	inconnu
1973 Avr 16 ±15 d. - 1974 Avr 16 ±15 d.	Obs./docs historiques	2	inconnu
1951 Jul 2 ±182 d.	Obs./docs historiques	2?	inconnu
1950 Mar 16 ±15 d. - Août 16 ±15 d.	Obs./docs historiques	2	inconnu
1949 Jun 12	Obs./docs historiques	2	inconnu
1949 Fév 4	Obs./docs historiques	2	inconnu
1948 Avr 29	Obs./docs historiques	2	inconnu
1944 Août - Oct	Obs./docs historiques	2	inconnu
1927	Obs./docs historiques	2	inconnu
1925	Obs./docs historiques	2	inconnu
1909 Nov 9	Obs./docs historiques	2	inconnu
1904	Obs./docs historiques	2	inconnu
1888	Obs./docs historiques	2	inconnu
1885 Sep - Oct	Obs./docs historiques	2	inconnu

Plus

Remark:

Our list of volcanic eruptions closely follows the database of eruptions of the Smithsonian's Global Volcanism Project (GVP), the internationally most recognized data source for volcanic eruptions, but also includes significant eruptive episodes or related volcano events. "Volcanic eruptions" are usually to be understood as sequences of individual eruptive episodes that can follow each other, or even overlap (if several vents are involved), and can last many years, decades or even longer. For example, the current activity of Stromboli volcano is understood as a single eruption that has been ongoing since 1934.

Sources: NOAA National Centers for Environmental Information (NCEI), Global Significant Volcanic Eruptions Database. doi:10.7289/V5TD9V7K | Global Volcanism Project / Smithsonian Institution

Eruptions du volcan Iliboleng

1991 eruptions
Ash eruptions occurred on 3 and 15 November 1991, ejecting columns to a maximum of ~150 m above the crater rim.

1987 eruption
A large explosion on 2 October at 22h52 local time, causing light ash fall in about a 15 km2 area around the volcano.

1986 eruption
On 28 May 1986, a single explosion ejected incandescent material and caused grass fires and ashfall on lantations and on Lamalota, Dua Muda, Tuawolo, and Kiwangona villages. 570 villagers were evacuated.
Ash eruptions were reported on 18 July and 10, 15, and 24 November. The ash plume on 24 November reached 1,000 m height and was blown NNW, covering 18.7 km2 with ca. 1 mm of ash. There were no casualties.
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Source: GVP monthly reports

1984 eruptions
Ash eruptions were reported from Iliboleng volcano on 3 January and 13 April 1984, producing dark ash plumes reaching 1 km height.

1983 eruption
Ash eruptions were reported on 11 May, 22 September, and 24 November 1983. Black ash plumes rose 500 m above the crater.

1982 eruption
An ash eruption occurred on 17 November and produced an ash plume plume 1 km high. Ash fell on nearby villages.

1948 eruption
Iliboleng volcano erupted on 27 April 1948, ejecting an estimated of 500 m3 of volcanic material.

Iliboleng Volcano FAQ

+When was the last eruption of Iliboleng volcano?

The last confirmed eruption of Iliboleng occurred in 1993.

+How often does Iliboleng volcano erupt?

Since 1885, Iliboleng volcano has had at least 20 historically documented eruptions. This means that it erupts on average every 7 years.

+How active is Iliboleng volcano at present?

Iliboleng volcano is relatively active: Since 1900, it has had 18 eruptions, and been active during 18 years out of 126 as of now. This means, Iliboleng has been in eruption one in 7 years on average. The last eruption was in 1993 and ended 32 years ago.

+When was the largest eruption of Iliboleng volcano?

The largest eruption of Iliboleng volcano in historic times occurred in 1987. It ranks as a strombolian to vulcanian eruption with a magnitude 2 on the VEI (Volcanic Explosivity Index) scale.

Dernières images satellite

See also: Sentinel hub | Landsat 8 | NASA FIRMS

Derniers images satellite

Iliboleng Volcan Cartes

Below is a selection of maps showing the location and surroundings of the volcano at various resolutions based on aerial-imagery / terrain maps. Feel free to use them for non-commercial purposes on your blog or website as long as you credit them with a link back to this page (click to copy it).