{{Short description|Volcano in Indonesia}} {{Infobox mountain | name = Mount Ibu | image = Gunung Ibu.jpg | image_caption = | location = Halmahera, Indonesia | map = Indonesia | map_caption = Location of Mount Ibu in Indonesia | elevation_m = 1325 | elevation_ref = <ref name="gvp">{{cite gvp|name=Ibu|vn=268030|access-date=2021-06-24}}</ref> | prominence = | listing = Ribu | range = | coordinates = {{coord|1.488|N|127.63|E|type:mountain|display=inline,title}} | topo = | type = Stratovolcano | age = | last_eruption = 21 May 2026 (ongoing as 25 May 2026)<ref name="Ibu Volcano on Volcano Discovery">{{Cite news|title=Ibu Volcano eruption sent ash up to 14,000 ft yesterday|url=https://www.volcanodiscovery.com/ibu/news/255283/Ibu-volcano-Halmahera-Indonesia-eruption-sent-ash-up-to-14000-ft-yesterday.html}}</ref> | first_ascent = | easiest_route = 84 }}
'''Mount Ibu''' ({{langx|id|Gunung Ibu}}) is a stratovolcano at the north-west coast of Halmahera island, Indonesia. The summit is truncated and contains nested craters. The inner crater is {{cvt|1|km}} wide and {{cvt|400.|m}} deep, while the outer is {{cvt|1.2|km}} wide. A large parasitic cone is at the north-east of the summit and a smaller one at the south-west. The latter feeds a lava flow down the west flank. A group of maars are on the western and northern side of the volcano.<ref name="gvp"/> Mount Ibu sits within the Pacific Ocean's "Ring of Fire" that has 127 active volcanoes.<ref>http://www.reuters.com/business/environment/indonesias-mount-ibu-erupts-disaster-agency-warns-possible-floods-cold-lava-flow-2024-06-01/</ref>
==Latest activity== In August 2009, the Volcanological Survey of Indonesia raised the eruption alert level for Ibu to Orange/III.<ref>[http://portal.vsi.esdm.go.id/joomla/ Ibu alert "Orange"]</ref>
In 2023, a total of 21,100 eruptions were recorded from the volcano, making it the second most active volcano in Indonesia.<ref>{{cite news |title=North Maluku's Mount Ibu erupts again, sending ashes westward |url=https://en.antaranews.com/news/305052/north-malukus-mount-ibu-erupts-again-sending-ashes-westward |access-date=28 April 2024 |publisher=Antara |date=5 February 2024 }}</ref>
On 16 May 2024, the Volcanological Survey of Indonesia raised its highest alert level (Red/IV) for Mount Ibu following another series of eruptions.<ref>{{cite news |title=Indonesia raises alert for Mount Ibu volcano to highest level following a series of eruptions |url=https://apnews.com/article/indonesia-mount-ibu-volcano-eruption-ff606e7ac224616b7cee53cb5ca5c3cb |access-date=16 May 2024 |publisher=Antara |date=16 May 2024 }}</ref> As a result, seven villages were evacuated.<ref>{{Cite news |date=2024-05-19 |title=Eruption of Indonesia's Mt Ibu forces seven villages to evacuate |url=https://www.reuters.com/world/asia-pacific/eruption-indonesias-mt-ibu-forces-seven-villages-evacuate-2024-05-19/ |work=Reuters}}</ref>
On 1 June 2024, Mount Ibu erupted at 11:03 WIT (02:03 GMT) for 265 seconds, producing a five kilometer (3 mile) high ash plume that dispersed towards the southwest<ref name=":0">{{Cite news |date=1 June 2024 |title=Indonesia's Mount Ibu erupts as disaster agency warns of possible floods, cold lava flow |url=https://www.reuters.com/business/environment/indonesias-mount-ibu-erupts-disaster-agency-warns-possible-floods-cold-lava-flow-2024-06-01/ |access-date=1 June 2024 |work=Reuters}}</ref><ref>{{Cite web |last=Afifa |first=Laila |date=2024-06-01 |title=PVMBG Records Another Eruption of Mount Ibu in Maluku Today |url=https://en.tempo.co/read/1874769/pvmbg-records-another-eruption-of-mount-ibu-in-maluku-today |access-date=2024-06-01 |website=Tempo |language=en}}</ref> and deposited ash on the village of Gam Ici, where many evacuees displaced by previous eruptions had been relocated.<ref>{{Cite news |date=1 June 2024 |title=Indonesia's Mount Ibu erupts again, spewing thick, gray ash high into the air |url=https://apnews.com/article/indonesia-mount-ibu-volcano-eruption-159e6a15b343c6dc4b6d4a0612812008 |access-date=2 June 2024 |work=Associated Press}}</ref> The Volcanological Survey of Indonesia warned of a potential for flash flooding and lahar flow in the region, and recommended that people move at least seven kilometers (~4.35 miles) away from the crater.<ref name=":0" />
On 6 June 2024, Mount Ibu erupted three more times, producing ash clouds as tall as 1,200 meters (4,000 feet).<ref>{{Cite web |date=2024-06-06 |title=Indonesia's Mount Ibu erupts 3 times, spewing lava and clouds of grey ash |url=https://apnews.com/article/indonesia-mount-ibu-volcano-eruption-4481b04839c245d04ffd6c1a9e664bf6 |access-date=2024-06-07 |website=AP News |language=en}}</ref>
On 11 January 2025, Mount Ibu erupted again, spewing hot lava and a towering column of smoke and ash reaching up to four kilometres.<ref>{{Cite web |date=2025-01-12 |title=Indonesia's Mount Ibu eruption sends lava, ash soaring 4 km into sky |url=https://www.indiatodayne.in/international/story/indonesias-mount-ibu-eruption-sends-lava-ash-soaring-4-km-into-sky-1153380-2025-01-12 |access-date=2025-01-13 |website=India Today NE |language=hi}}</ref> From 1 January to 19 January 2025, the volcano erupted 1,079 times, forcing authorities to raise its highest alert level again.<ref>{{Cite web |date=2025-01-20 |title=Indonesia's Mount Ibu erupts more than 1,000 times this month |url=https://www.france24.com/en/live-news/20250119-indonesia-s-mount-ibu-erupts-more-than-1-000-times-this-month |access-date=2025-01-20 |website=France 24 |language=en}}</ref>
== See also == {{Portal|Indonesia|Volcanoes}} * List of volcanoes in Indonesia * Volcanological Survey of Indonesia
== References == {{reflist}}
==External links== *[https://www.youtube.com/watch?v=_oulgUoyKaA YouTube video of eruption], uploaded Jan 6, 2016
{{Authority control}}
{{DEFAULTSORT:Ibu, Mount}} Category:Stratovolcanoes of Indonesia Category:Active volcanoes of Indonesia Category:Mountains of Indonesia Category:Volcanoes of Halmahera Category:Maars of Indonesia Category:Volcanic crater lakes Category:Holocene stratovolcanoes
{{NMaluku-geo-stub}}