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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)
Krakatau webcams / live data | Reports
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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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Sentinel hub | Landsat 8

Krakatoa (Krakatau) volcano news & eruption updates:

Krakatoa volcano (Sunda Strait, Indonesia): strong explosive activity continues as sea water meets lava

Thursday Dec 27, 2018 12:40 PM | BY: T

Krakatau with steam explosions seen yesterday (image:  Sutopo Purwo Nugroho @Sutopo_PN / twitter)
Krakatau with steam explosions seen yesterday (image: Sutopo Purwo Nugroho @Sutopo_PN / twitter)
Recent seismic activity showing a rhythmic pattern of peaks in activity every 2-4 weeks (image: VSI)
Recent seismic activity showing a rhythmic pattern of peaks in activity every 2-4 weeks (image: VSI)
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.
A video of an overflight earlier today shows powerful steam explosions of this so-called Surtseyan activity, generating dense steam and ash clouds, often ejected as "fingers" of larger ejected rock fragments with training steam behind, as well as billowing surges that shoot horizontally above the water.
Civil Protection (BNPB) raised the alert level of the volcano from Waspada (Level II) to Siaga (Level III) on the Indonesian 1-4 scale and the exclusion zone was extended from 2 to 5 kilometers around the volcano, where people are prohibited from carrying out activities.
Seismic activity from the volcano has been lower following the paroxysm on 21-22 Dec, following the pattern of phases of increased activity roughly every 3-4 weeks, suggesting that magma supply to the vent is currently reduced.
Links / Sources:
Previous news
Exaggerated  cross section and bathymetry of the Krakatau caldera, showing the flank collapse modeled in 2012 (image: Giachetti et al, 2012)
Tuesday, Dec 25, 2018
Sometimes, science has already answers for tragic events, but their voice is not heard or underestimated at the time. The Indonesia tsunami disaster two days ago is such an example: What happened on 22 Dec 2018 had actually already been described and warned about for years in amazing detail: ... [more]
Monday, Dec 24, 2018
A version with the start of the explosion filmed in Oct slowed down 10x where you can see how it breaks through the cone itself: ... [more]
Monday, Dec 24, 2018
The triggering cause of Saturday's tsunami is still being discussed. A common and likely interpretation is a landslide, which could have been caused by either, or a combination of: ... [more]

Monday, Dec 24, 2018
If you like to send a small donation for the victims of the Dec 2018 tsunami in Java (Indonesia), we are providing a direct channel to do so: we collect donations through our PayPal account and forward this money direct to our local expedition leader Andi who delivers this money directly to affected people in need through his organization ITGA / HPI. [more]

Sunday, Dec 23, 2018
On this special news page, we will collect information and updates and add them on top of the stack as news come in about the Krakatoa eruption and tsunami on 22 Dec 2018. [more]

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