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Krakatau volcano
Caldera 813 m (2,667 ft.) / Anak Krakatau: 189 m
Sunda Strait, Indonesia, -6.1°S / 105.42°E
Current status: minor activity or eruption warning (3 out of 5)
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Krakatau volcano eruptions:
1530, 1680-81, 1684, 1883 (Plinian eruption), 1927-30, 1931-32, 1932-34, 1935, 1936, 1937, 1938-40, 1941, 1942, 1943, 1944, 1945, 1946, 1946-47, 1949, 1950, 1952, 1953, 1955, 1958-59, 1959-63, 1965(?), 1969(?), 1972-73, 1975, 1978, 1979, 1980, 1981, 1988, 1992-93, 1994-95, 1996, 1997, 1999, 2000, 2001, 2007-8, April 2009-early 2010, Oct 2010 - March 2011, July-Oct 2011, Jan-May + Sep 2012, 2015(?), 2017, 2018 (22 Dec eruption & tsunami), 2019-ongoing
Typical eruption style:
Explosive. Construction of a cinder cone  island (Anak Krakatau) inside the caldera formed by the 1883 eruption. Frequent strombolian activity.
Last earthquakes nearby
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From Krakatau to Bali (16-days study and photo tour to Java, Indonesia)
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Krakatau Volcano Special (expedition to study & observe Anak Krakatau volcano and its activity)

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Krakatau volcano news & eruption updates:

Krakatau volcano (Indonesia): camera survives eruption - spectacular video of lava fountains

Saturday Apr 11, 2020 10:41 AM | BY: T

Lava fountain at Anak Krakatau last night
Lava fountain at Anak Krakatau last night
Last night's violent paroxysm at Anak Krakatau ended abruptly around 08:00 morning local time. Fortunately, the webcam on the island survived the eruption although it seems it was hit by a projectile at 02:33 local time, when it suddenly tilted.
The following timelapse video shows the eruption from beginning to end, allowing the chronology and reconstruction of the various phases of the paroxysm:
After dark, at around 20:00 local time, increasingly larger plumes can be seen rising from the new crater of Anak Krakatau, probably emissions of steam and ash generated by the first explosions, likely phreatomagmatic in nature when rising magma pushed its way up to the still partially lake filled crater and leading to explosive interaction between magma and water (phreatomagmatic activity).
Around 22:20, strombolian explosions start, which quickly become stronger and near-continuous.
At around 23:00, the activity dramatically increases: lava bombs are seen landing all over in the vicinity of the webcam (bright traces), but the camera survives... this is the moment probably, the lava fountaining phase started, which also generated a ash/steam plume rising up to 47,000 ft (15 km) altitude.
Activity remains very high during the next hours. At 02:34, the camera suddenly tilts, probably because hit by a projectile that caused it to move, but it remains operational!
Lava fountains can still bee seen bright red despite the camera facing east into the morning sunlight, but activity decreases after around 06:00. Activity then drops very rapidly at around 08:00, when this eruptive phase can be called to have ended although intermittent, smaller steam and ash clouds still continue to rise from the crater.


The eruption seen from the coast (webcam of the volcano observatory near Carita):


The eruption could be a resumption of the pattern of activity during 2018, when the volcano produced violent paroxysms with lava fountains and lava flows at intervals of few weeks. It will be interesting to monitor whether this is the case and how activity will evolve in the coming weeks and months.
As soon as possible again, we hope to be able to travel and visit the island to document the new activity and probably dramatic changes to the morphology of the island and its crater, where likely a new cone is now forming.
Previous news
Lava fountains from Anak Krakatau this evening (image: MAGMA Indonesia webcam)
Friday, Apr 10, 2020
A large magmatic eruption is taking place at the volcano right now. Based on satellite imagery, VAAC Darwin spotted a high-level ash and SO2 plume reaching 47,000 ft (15 km) altitude moving WNW. ... [more]
An ash plume from Krakatau volcano today (image: PVMBG)
Wednesday, Mar 25, 2020
After a month of calm, activity of the volcano continues at moderately levels. PVMBG reported that several small explosions occurred from the active crater. An ash plumes reached 3,000 ft (914 m) altitude. ... [more]

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