The Volcano Adventure Guide: Excellent information and background for anyone wishing to visit active volcanoes safely and enjoyably. The book presents guidelines to visiting 42 different volcanoes around the world.
Krakatau, a small island group in the Sunda Strait between the islands of Sumatra and Java is one of the world's most famous volcanoes. It is a mostly submerged caldera with 3 outer islands belonging to the rim and a new cone, Anak Krakatau, that has been forming a new island since 1927 and remains highly active.
Krakatau exploded spectacularly in a devastating Plinian eruption 1883 that killed more than 30,000 people (mostly by the huge tsunamis triggered by the eruption). The eruption was one of the first global news events after telegraph lines had connected the different continents.
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 Krakatau volcano books | Tours 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 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
Seismic trace of Krakatau this morning, showing no significant signs of activity (image: Andi / VolcanoDiscovery)
The volcano stopped erupting as our correspondent Andi who is currently at the volcano observatory reported. ...more
Whether it is only a brief(?) pause or whether the eruption was in fact a very short-lived one is impossible to say. We will follow the activity closely and update as needed. For the time being, the planned last-minute eruption tours next week and in mid March are on hold. In case the volcano restarts to erupt in the next days, it would be promising to go, otherwise, we have to postpone them. [less]
The new eruption that began a few days ago continues in the form of strombolian to vulcanian explosions from the summit. ...more
If you like to join us and find out more on location, witness the new eruption by spending 4 full days on and around the island, this is your chance! Information and reservations: Krakatau Volcano Special [less]
Explosive eruption at Anak Krakatau yesterday night (image: Aaron)
A new eruption as suspected yesterday has been confirmed. Our reader Aaron visited the volcano and saw intense strombolian-vulcanian type activity from the summit crater of Anak Krakatau: ...more
"Spent last night at Anak Krakatoa and just saw your post about new activity, I can confirm there was a lot of activity yesterday afternoon/night. See attached photo." Eruption Special tour: We plan to organize expeditions to Krakatau in the near future. If you like to be updated, drop us an email or visit the Krakatau Volcano Special tour page. [less]
As our colleague Marc Szeglat from Vulkane.net noticed, a strong thermal signal from what seems to be the summit of Anak Krakatau has become visible on satellite data during the past days. ...more
What causes the thermal signal exactly is unknown. While non-volcanic causes (e.g. forest fires) cannot be ruled out, it is more likely that a new mass of lava has arrived at the crater, probably in the form of a new dome. In that case, Krakatau might be entering a new eruptive phase (the last significant eruption having being in sep 2012), something which would not be a surprise, statistically. So far, there is no confirmation, e.g. there have been no significant ash emissions observed, which could mean that the activity (if there is) is only effusive for now. We wait for further information about possible activity and will update as needed. [less]
Intraplate volcanism: A third tectonic setting where volcanism occurs is believed to be the result of mantle plumes and not directly related to plate boundaries. So called hot spot volcanoes fall into this category.
Nyamuragira volcano photos: Africa's version of Mauna Loa, Nyamuragira (or Nyamulagira) is a massive basaltic shield volcano neighboring Nyiragongo. It is one of the most active volcanoes in the world and has voluminous eruptions every few years.
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