Ruang Volcan

Updated: 19 avril. 2025 21:07 GMT - refresh

Stratovolcano

Sangihe Islands, Indonesia, 2.31°N / 125.37°E

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Summit height: 725 m / 2,379 ft

Condition actuelle: Activité petite ou avertissement éruption imminente (3 sur 5)

Last update: 10 janv. 2025 (significant changes to crater detected from satellite)

Ruang volcano seen in Jan 2025 (image: T Hoyer)

Ruang volcano is the southernmost volcano in the Sangihe Island arc, north of Sulawesi Island. The 4 x 5 km island volcano rises to 725 m across a narrow strait SW of the larger Tagulandang Island. The summit of Ruang volcano contains a crater partially filled by a lava dome initially emplaced in 1904. Explosive eruptions recorded since 1808 have often been accompanied by lava dome formation and pyroclastic flows that have damaged inhabited areas. Eruptions in 1870 and 1871 also caused fatalities.

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Ruang webcams / live data | News/Updates | Earthquakes

Style éruptif tipique: Explosive. Formation of lava domes and pyroclastic flows.
Eruptions du volcan Ruang: 1808, 1836(?), 1840, 1856, 1870, 1871, 1874, 1889, 1904-05, 1914-15, 1949, 1996(?), 2002, 2024

Derniers séismes proches

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

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Éruptions volcaniques importantes: volcano Ruang

In the past 10,000 years, Ruang has had at least 13 confirmed eruptions, all documented by historical records or observations. Additionally, there are 4 uncertain or discredited eruptions from Ruang volcano.

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

Date	Note	VEI	Morts	Dommages
2024 Avr 16 - Mai 7	Obs./docs historiques	?		inconnu
2024 Avr 16 (épisode éruptif 2024 Avr 16)	Obs./docs historiques	0		lourd	Infos
2024 Avr 16: A minor eruption began at around 1337 on 16 April…and at 1600 the Alert Level was raised to 3. According to a news article a larger eruption began at 2045 and ash plumes rose 2 km. The eruption intensified overnight during 16-17 April…BNPB reported that 828 people evacuated and the communication network in Laingpatehi village was not operational. Photos showed incandescent material being ejected above the summit, incandescent material on the flanks, and dense ash plumes with lightning rising into dark, nighttime skies. (reference #13767) As of 18 April, Tagulandang Port is currently not operational. Communication lines have been disrupted in Laingpatehi Island. Based on the limited data available, it is estimated that 7.2K people, 1.9K households, and 15.5M USD worth of infrastructure are within 10 km and more likely to be adversely impacted, and that there is no concentrated population between 10 km and 30 km of the volcano. (reference #13766) The BNPB detailed material losses due to the impact of this disaster including approximately 135 houses in Sitaro Regency, 363 houses were damaged, 2 churches were damaged and 1 elementary school was damaged. (reference #13768) As of 7 May, more than 3,200 houses and more than 50 units of community facilities (school, health facility, markets, bridge and etc) damaged by the Mt Ruang volcaninc activities. (reference #13776) Cited references #13766 AHA Centre - ASEAN Coordinating Centre for Humanitarian Assistance on disaster management (2024): FLASH UPDATE: No. 01 – Mount Ruang Volcanic Activity in North Sulawesi, Indonesia. Published 18 April 2024. Link #13767 Global Volcanism Program (2024): Report on Ruang (Indonesia) (Sennert, S, ed.). Weekly Volcanic Activity Report, 10 April-16 April 2024. Smithsonian Institution and US Geological Survey. Link #13768 National Agency for Disaster Management (BNPB), Indonesia (2024): [UPDATE] The impact of volcanic eruptions is widespread, emergency management efforts continue to be maximized. Published 20 April 2024. Link #13776 International Federation of Red Cross and Red Crescent Societies (IFRC) (2024): IDN: Volcanic Eruption - 04-2024 - Volcanic Eruption, Mt. Ruang #2. Published 7 May 2024. Link Source: NOAA National Centers for Environmental Information (NCEI), Global Significant Earthquake Database. doi:10.7289/V5TD9V7K
2002 Sep 25 - Sep 29 ?	Obs./docs historiques	4?		inconnu
?? 1996 Jun 27	Éruption incertaine	?		inconnu
1949 Jan 5 - Jan 19 ou plus tard	Obs./docs historiques	2		inconnu
1946 Oct 13 - Oct 15	Éruption discréditée
1940 Avr	Éruption discréditée
1918 Fév	Éruption discréditée
1914 Mai 29 - 1915 Fév 28 ±30 d.	Summit craters K2 and K3 Obs./docs historiques	2		inconnu
1904 Avr 22 - 1905 Mai 27	Obs./docs historiques	3?		inconnu
1889 Jun	Obs./docs historiques	1		inconnu
1874 Nov 15	Obs./docs historiques	2		inconnu
1871 Mar 2 - Mar 14	Obs./docs historiques	2		inconnu
1871 Mar 3 (éruption 1871 Mar 2 - Mar 14)	Tsunami enregistré Obs./docs historiques	2	400	modéré	Infos
1871 Mar 3: 1871, March 3. 300-400 killed, 1 village completely destroyed, 75 houses destroyed at Bahhuas on Tagulandang Island by tsunami associated with partial collapse of lava dome. (reference #9675) Reference #414: 1871, March 3. On Tahulandang Island, from about the middle of February the residents of the island began to feel underground shocks. On March 2, chunks of stone began to roll down from the top of Ruang Volcano, standing in the sea 300 m from the island. On the 3rd at about 20:00 [local time], an earthquake began suddenly, and at the same time a thunderous rumble "announced" the eruption of the volcano. A few seconds later, an enormous wave surged onto the coast of Tahulandang Island. It penetrated 180 m inland, and destroyed all the huts and plantations in its path. At the center of Tahulandang (Buhias) settlement, a wave rose 25 m above the usual sea level, as was determined by an official who investigated the island on March 30-31, from objects which caught on some trees which survived the waves. Two more waves followed the first wave at very short intervals. Of the fluorishing settlement, consisting of 75 homes, there remained only three huts on its northern margin. However, they were all heavily damaged, and only one remained suitable for habitation; in addition, all the outbuildings and utensils kept under the huts were washed off. All the other homes were overturned and smashed or washed away, including a well-built church with stone walls 0.5 m thick. Bits of masonry were scattered around for a distance of up to 100 m, so that only the remaining paved courtyard indicated the previous site of the church. The earth was furrowed with ditches, carved out by the retreating water. The trees were uprooted and strewn helter-skelter with debris of homes and various utensils. A small ship was tossed to the foot of the mountain. The plantations situated on the mountain side remained intact. Out of the 500 residents of the settlement, 277 died. Other settlements on the western and southwestern shore of the island also suffered destruction (Bohoi, Tulusan, Haasi). In all, about 400 people died on the island. All the plantations and in general all the vegetation on the slopes of the Ruang Volcano were also destroyed. From 20:00 on March 9 to 14:00 on the 10th, there was a recurrent eruption of the volcano; sand and stones were ejected. Then the eruption resumed on March 14 and continued until 3:00. Cited references #414 Soloviev, S.L., and Ch.N. Go (1974): A catalogue of tsunamis on the western shore of the Pacific Ocean [dates include 173-1968. Academy of Sciences of the USSR, Nauka Publishing House, Moscow, 439 p. [Canadian Translation of Fisheries and Aquatic Sciences no. 5077, 1984, translation available from Canada Institute for Scientific and Technical Information, National Research Council, Ottawa, Ontario, Canada K1A OS2, 447 p.] #1412 Simkin, Tom, and Lee Siebert with the collaboration of Russell Blong, Jonathan Dehn, Christopher Newhall, Roland Pool, and Thomas C. Stein (1994): Volcanoes of the World, Second Edition, A Regional Directory, Gazetteer, and Chronology of Volcanism During the Last 10,000 Years, Geoscience Press, Inc., Tucson, Arizona, in association with Smithsonian Institution, Global Volcanism Program, Washington, D.C., p. 164-176. #9675 Siebert, Lee, Tom Simkin, Paul Kimberly (2010): Fatalities & Evacuations, Volcanoes of the World, Third Edition, Geoscience Press, Inc., University of California Press, Smithsonian Institution, Washington, D.C., p. 329-347. Source: NOAA National Centers for Environmental Information (NCEI), Global Significant Earthquake Database. doi:10.7289/V5TD9V7K
1870 Août 27 - Août 28	Obs./docs historiques	3?		inconnu
1870 Août (éruption 1870 Août 27 - Août 28)	Obs./docs historiques	2	1-50 (*)	lourd	Infos
1870 Août: Unknown number of deaths, 1 village completely destroyed, 40 houses destroyed. Cited references #1412 Simkin, Tom, and Lee Siebert with the collaboration of Russell Blong, Jonathan Dehn, Christopher Newhall, Roland Pool, and Thomas C. Stein (1994): Volcanoes of the World, Second Edition, A Regional Directory, Gazetteer, and Chronology of Volcanism During the Last 10,000 Years, Geoscience Press, Inc., Tucson, Arizona, in association with Smithsonian Institution, Global Volcanism Program, Washington, D.C., p. 164-176. Source: NOAA National Centers for Environmental Information (NCEI), Global Significant Earthquake Database. doi:10.7289/V5TD9V7K
1856 Sep	Obs./docs historiques	1		inconnu
1840	Obs./docs historiques	2		inconnu
1836 ? -	Obs./docs historiques	2		inconnu
1808	Obs./docs historiques	2		inconnu

(*) Chiffres estimés

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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

Ruang Volcano FAQ

+When was the last eruption of Ruang volcano?

The last confirmed eruption of Ruang occurred in 2024.

+How often does Ruang volcano erupt?

Since 1808, Ruang volcano has had at least 13 historically documented eruptions. This means that it erupts on average every 16.7 years.

+How active is Ruang volcano at present?

Ruang volcano is infrequently active: Since 1900, it has had 7 eruptions, and been active during 7 years out of 126 as of now. This means, Ruang has been in eruption one in 18 years on average. The last eruption was in 2024 and ended 11 months ago.

+When was the largest eruption of Ruang volcano?

The largest eruption of Ruang volcano in historic times occurred in 2002. It ranks as a sub-plinian eruption with a magnitude 4 on the VEI (Volcanic Explosivity Index) scale.

Dernières images satellite

See also: Sentinel hub | Landsat 8 | NASA FIRMS

Derniers images satellite

Ruang 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).