Volcanoes & Earthquakes - new app for Android
Guaranteed tours
22-29 May 2021: Pearl of the Aegean - Santorini - Santorini Island (Greece)
24 Jun - 8 Jul 2021: Colors of Iceland: Fire, Earth, Ice and Water - Iceland
7-15 May 2022: From Stromboli to Etna - Sicila and Eolian Islands (Italy)
: spaces available / : guaranteed / : few spaces left / : booked out
Krakatau volcano
Caldera 813 m (2,667 ft.) / Anak Krakatau: 189 m
Sunda Strait, Indonesia, -6.1°S / 105.42°E
Current status: restless (2 out of 5) 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.

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

Krakatau volcano news & eruption updates:

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

Mon, 31 Dec 2018, 15:34
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:

Previous news

Sun, 30 Dec 2018, 21:13
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)
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: ... Read all
Sun, 30 Dec 2018, 09:22
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). Read all
Show more
Try our free app!
Volcanoes & Earthquakes - new app for Android
Android | iOS version

More on VolcanoDiscovery

Why is there advertising on this site?
Support us - Help us upgrade our services!
We truly love working to bring you the latest volcano and earthquake data from around the world. Maintaining our website and our free apps does require, however, considerable time and resources.
We need financing to increase hard- and software capacity as well as support our editor team. We're aiming to achieve uninterrupted service wherever an earthquake or volcano eruption unfolds, and your donations can make it happen! Every donation will be highly appreciated. If you find the information useful and would like to support our team in integrating further features, write great content, and in upgrading our soft- and hardware, please make a donation (PayPal or Online credit card payment).

Planned features:
  • Weather reports
  • Tsunami alerts
  • Design upgrades
  • Faster responsiveness
Thanks to your past donations, these features have been added recently:
  • Earthquake archive from 1900 onwards
  • Additional seismic data sources
  • Improved content in English
Download and Upgrade the Volcanoes & Earthquakes app to get one of the fastest seismic and volcano alerts online:
Android | IOS
Thank you!
Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: Most texts and images, in particular photographs, on this website are protected by copyright. Further reproduction and use of without authorization is usually not consented. If you are not sure or need licensing rights for photographs, for example for publications and commercial use, please contact us.