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Ijen volcano
Stratovolcano 2799 m / 9,183 ft
East Java, Indonesia, -8.06°S / 114.24°E
Current status: normal or dormant (1 out of 5)
Ijen webcams / live data | Reports
Ijen volcano videos
Ijen volcano books | Tours
Ijen volcano eruptions:
1796, 1817, 1917, 1936, 1952, 1993, 1994, 1999, 2000(?), 2002(?)
Typical eruption style:
Explosive. Contains a large acid crater lake, intense fumarolic activity.
Last earthquakes nearby
Ijen volcano tours
From Krakatau to Bali (16-days study and photo tour to Java, Indonesia)
Volcanoes of Java (17-days walking and trekking tour on Java)
A Dream Come True - World Volcano Tour (4 weeks round-the-world trip to Hawai'i - Vanuatu - New Zealand - Indonesia)
Volcanoes of East Java (4-5 days walking tour to Bromo, Semeru and Ijen)
Bromo, Semeru, Ijen (trekking tour to Semeru, Bromo, Ijen volcanoes (East Java))

Latest satellite images

Sentinel hub | Landsat 8
 

Ijen volcano (East Java, Indonesia) news & activity updates

Ijen volcano (East Java) update: decreasing activity, crater is open again for visits

Thursday Feb 09, 2012 16:21 PM | BY: T

The crater of Ijen is again open for visitors. The Indonesian Geological Survey lowered the alert level for Ijen volcano yesterday back from 3 (where it had been since 18 Dec, on a scale of 1-4) to 2.
The decision was based on measurements of decreasing seismic, visual and temperature parameters that are regularly monitored at the volcano:
1) Decreasing steaming and bubbling from the lake was visually observed during the past weeks.
2) Decreasing seismic activity, from 304 harmonic tremor signals, 3 low frequency earthquakes, 74 shallow volcanic quakes, and 21 normal volcanic quakes recorded during 1-7 January to 21 harmonic tremor signals, 40 low frequency earthquakes, 102 shallow volcanic quakes, and 8 normal volcanic quakes.
3) Decreasing lake temperatures: surface temperatures were 23 deg C in January and are now back to 18-19 deg C. Below-surface lake water temperatures (measured at 5 m depth) have decreased from 42 deg C on 20 January to 37 deg C on 2 February.
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Links / Sources:
Previous news
Wednesday, Dec 28, 2011
Ijen volcano in East Java, famous for its turquoise crater lake and the massive sulfur deposits inside the crater, might be close to an eruption. ... [more]
Friday, Dec 16, 2011
The alert level of Ijen volcano in East Java has been raised to alert/unrest (2 out of 4) due to increased seismic activity and increased temperatures and fumaroles inside the crater, famous for its turquoise acid lake and the sulfur deposits, which are being quarried by workers. ... [more]

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