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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)

Latest satellite images

Sentinel hub | Landsat 8
 

Krakatoa (Krakatau) volcano news & eruption updates:

Krakatoa volcano (Sunda Strait, Indonesia): fresh aerial image showing the island's dramatic change in shape

Monday Dec 31, 2018 15:34 PM | BY: T

Anak Krakatau island seen 30 Dec 2018 (author unknown / Dongeng Geologi via facebook)
Anak Krakatau island seen 30 Dec 2018 (author unknown / Dongeng Geologi via facebook)
Anak Krakatau island seen 30 Dec 2018 (author unknown / Dongeng Geologi via instagram)
Anak Krakatau island seen 30 Dec 2018 (author unknown / Dongeng Geologi via instagram)
A fresh aerial image from Anak Krakatau has appeared on the very active Volcanoes and Volcanism group on facebook:
it shows in more detail what the 29 Dec satellite image already confirmed: the island of Anak Krakatau has now the shape of a 270 deg almost closed crescent, with a water-filled crater in the center where once the 330 m tall summit cone stood (which collapsed on 22 Dec causing the tsunami).
Although the image is not detailed enough, it seems (and it would be expected so after the violent phreatomagmatic activity following the collapse) that virtually all of the island has been covered and reshaped, smoothed out by fresh pyroclastic deposits. What if any of its flora and fauna has survived needs to be found out yet by visiting it.
Happy New Year to all!

update:
This processed satellite image from 28 Dec below shows the change in morphology even clearer, but includes a significant land gain after the collapse as well, which seems to have build most of the southern "arm" of the crescent. Most of the new land is probably due to accumulated material (tephra) from the intense sursteyan activity in the days after the landslide, building a new large tuff ring around the crater:
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Links / Sources:
Previous news
Comparison of Anak Krakatau's coast line seen on 29 Dec with a satellite image before the eruption (26 Nov 2018) (image: Sentinel-2 / ESA)
Sunday, Dec 30, 2018
A new high-resolution satellite image taken yesterday allows an update on the dramatic effects the 22 Dec collapse has had on Anak Krakatau island: ... [more]

Sunday, Dec 30, 2018
On 17 Oct, explosions were particularly violent at Anak Krakatau. We show a series of images of a spectacular explosion captured from close range by boat. 2 months later, the cone of Anak Krakatau collapsed into the sea on the evening of 22 Dec 2018, triggering a catastrophic tsunami (more info). ... [more]
Krakatoa seen yesterday from the coast - Anak Krakatau is no longer visible, only small ash and steam plumes rising from behind Sertung (image: VSI webcam)
Saturday, Dec 29, 2018
The activity at the volcano continues at reduced rate. Steam explosions have been more intermittent and smaller during the past 2 days, generating plumes that rose a few hundred meters only. ... [more]
Friday, Dec 28, 2018
After almost 6 days of an almost non-stop ash plume to 55,000ft following the devastating collapse, Darwin VAAC reports that activity has finally subsided with only very minor emissions. No updates about local conditions at the moment. [more]
Krakatau with steam explosions seen yesterday (image:  Sutopo Purwo Nugroho @Sutopo_PN / twitter)
Thursday, Dec 27, 2018
The violent explosive activity caused by magma-water interaction continues at the volcano, from the area where the summit cone collapsed on 22 Dec and now exposes the vent to sea water. ... [more]

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