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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)
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
Krakatau volcano tours
From Krakatau to Bali (16-days study and photo tour to Java, Indonesia)
A Dream Come True - World Volcano Tour (4 weeks round-the-world trip to Hawai'i - Vanuatu - New Zealand - Indonesia)
Krakatau Volcano Special (expedition to study & observe Anak Krakatau volcano and its activity)

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Krakatoa (Krakatau) volcano news & eruption updates:

Krakatau volcano (Sunda Strait, Indonesia): increasing activity changes to strombolian

Monday Dec 30, 2019 16:17 PM | BY: T

Strombolian eruption at Krakatau yesterday (image: PVMBG)
Strombolian eruption at Krakatau yesterday (image: PVMBG)
Seismic activity at Krakatau during the past weeks (image: Magma Indonesia)
Seismic activity at Krakatau during the past weeks (image: Magma Indonesia)
The activity at the volcano has increased during the past days. Small to moderate explosive activity seems now to have become more frequent if not nearly continuous.
VAAC Darwin reports continuous ash emissions to 8,000-10,000 ft (2.4-3 km) altitude, generating a steam and ash plume drifting SW for several tens of kilometers.
A webcam image shows that at least some of the explosions now generate incandescent tephra, which suggests that the eruption dynamics is changing from surtseyan (water-magma interaction) to strombolian (no water interacting), probably as accumulated material from the eruptions has sealed off the vent, which used to be in a lake-filled crater. It also means that increased amounts of fresh magma are likely on the way to the surface now.
This also fits the observation of increased periods of volcanic tremor recorded by the seismic network.
As soon as the weather conditions allow, we plan to revisit the island group to inspect the new activity. If anyone is interested, please look at our Krakatau Volcano Special expedition page.
Previous news
Monday, Dec 30, 2019
Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: ... [more]
Satellite image of Krakatau volcano on 30 Dec 2019
Monday, Dec 30, 2019
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 10000 ft (3000 m) altitude or flight level 100 . ... [more]
Monday, Dec 30, 2019
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 8000 ft (2400 m) altitude or flight level 080 . ... [more]
Satellite image of Krakatau volcano on 28 Dec 2019
Saturday, Dec 28, 2019
Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: ... [more]
Anak Krakatau from Carita (image: PVMBG)
Thursday, Nov 14, 2019
PVMBG reported that during 4-10 November diffuse white plumes rose as high as 200 m above Anak Krakatau’s active vent. ... [more]

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