Get our newsletter!
Check out the volcano tours offered by Volcano-Adventures!
Volcanoes & Earthquakes - new app for Android
Guaranteed tours:
14-27 Nov 2017: Expedition Papua - Papua New Guinea
23 Dec 17 - 5 Jan 2018: Desert, salt and volcanoes - Danakil desert (Ethiopia)
30 Dec 17 - 6 Jan 2018: Nyiragongo Lava Lake & Mountain Gorillas - DR Congo + Rwanda
13-26 Jan 2018: Desert, salt and volcanoes - Danakil desert (Ethiopia)
28 Jan - 4 Feb 2018: Nyiragongo Lava Lake & Mountain Gorillas - DR Congo + Rwanda
17-23 Mar 2018: Kilauea Volcano Special - Big Island, Hawaiʻi
25-29 Mar 2018: Sakurajima Volcano Special - Kyushu (Japan)
28 Apr - 3 May 2018: Aegean's Hidden Gem: Isle of Milos - Milos Island (Greece)
5-13 May 2018: From Stromboli to Etna - Eolian Islands + Etna volcano (Italy)
: spaces available / : guaranteed / : few spaces left / : booked out
Random pictures
News
Tuesday, Aug 20, 2013
A submarine eruption has likely occurred this morning in Indonesia. VSI raised the alert level of Iliwerung volcano from 1 (normal) to 2 (watch) following increased seismic and visual activity from an underwater flank vent called Gunung Hobal. ... [more]
 

Iliwerung volcano

complex volcano 1018 m / 3,340 ft
Lesser Sunda Islands, Indonesia, -8.53°S / 123.57°E
Current status: dormant (1 out of 5)
Iliwerung volcano books
Last update: 19 Jun 2014 (possible submarine eruption from Mt Hobal on 20 August)
Typical eruption style: Explosive
Iliwerung volcano eruptions: 2013, 1993, 1983, 1976 (?), 1973-74, 1952, 1951, 1950, 1949, 1948, 1941 (?), 1928, 1910, 1870
TimeMag. / DepthDistanceLocation
Tue, 10 Oct
Tue, 10 Oct 23:10 UTCM 4.7 / 10 km7 kmFlores Region, Indonesia
Mon, 9 Oct
Mon, 9 Oct 22:23 UTCM 4.8 / 10 km8 kmFlores Region, Indonesia
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.

Background:

Iliwerung volcano was constructed on the southern rim of the Lerek caldera. The present-day summit lava dome was built during an eruption in 1870. In 1948 the Iligripe lava dome grew on the eastern flank at 120 m altitude. In 1973-74, 3 temporary new islands were formed, when submarine eruptions began on the lower SE flank at a vent named Hobal.

1993 submarine eruption
A submarine eruption took place at the Hobal vent at 50 m water depth, ca. 1 km SE off the coast of Iliwerung on 16 September 1993. The eruptions produced a water column 100 m high. ...more

1983 submarine eruption
Explosions occurred 17 and 18 August from a submarine vent south of Iliwerung.

1979 landslide and deadly tsunami
In July 1979, a large landslide removed ca. 50 million m3 from the NW flank of Iliwerung volcano, a third of which reached the sea and caused a tsunami that killed hundreds of people.

1973-74 submarine eruptions, temporary islands
Submarine eruptions between December 1973 and August 1974 created 3 new temporary islands, which subsequently were eroded and disappeared. ...more

1948 flank eruption
An eruption of Iliwerung volcano on 7 May 1948 produced a violent pyroclastic flow which reached the east coast and killed 300 cattle and destroying 100 farming sections. The eruption partly destroyed the lava dome. On 9 May, another eruption occurred at the lower eastern base of Iliwerung at about 140 m altitude and produced an ash plume of 4 km height, and opened a new 120 m wide crater, from which a viscous lava flow emerged, building up a new lava dome, called Iligripe. The new dome reached a height of 50 m by 11 May.
---
Source: Report on the volcanic activity and volcanological research in indonesia during the period 1936–1948, R. W. van Bemmelen, Bul. Volc, V.9, Nr 1, 3-2

1870 eruption - summit lava dome
Iliwerung's summit lava dome formed during an eruption in 1870.

Latest satellite images

More on VolcanoDiscovery:

Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: Text and images on this webpage are copyrighted. Further reproduction and use without authorization is not consented. If you need licensing rights for photographs, for example for publications and commercial use, please contact us.