Indonesia · Caldera
Krakatoa
Krakatau
- Tipo
- Caldera
- Altitudine
- 285 m
- Ultima eruzione
- 2024
- Tipo
- Caldera
- Paese
- Indonesia
- Regione
- Sunda e Banda / Sunda Volcanic Arc
- Altitudine
- 285 m
- Coordinate
- -6.101, 105.423
- Ultima eruzione
- 2024
- Contesto tettonico
- Zona di subduzione / Crosta continentale (> 25 km)
- Forma vulcanica
- Caldera
- Roccia principale
- Andesite / Andesite basaltica
Sintesi geologica
The renowned Krakatau (frequently misnamed as Krakatoa) volcano lies in the Sunda Strait between Java and Sumatra. Collapse of an older edifice, perhaps in 416 or 535 CE, formed a 7-km-wide caldera. Remnants of that volcano are preserved in Verlaten and Lang Islands; subsequently the Rakata, Danan, and Perbuwatan cones were formed, coalescing to create the pre-1883 Krakatau Island. Caldera collapse during the catastrophic 1883 eruption destroyed Danan and Perbuwatan, and left only a remnant of Rakata. This eruption caused more than 36,000 fatalities, most as a result of tsunamis that swept the adjacent coastlines of Sumatra and Java. Pyroclastic surges traveled 40 km across the Sunda Strait and reached the Sumatra coast. After a quiescence of less than a half century, the post-collapse cone of Anak Krakatau (Child of Krakatau) was constructed within the 1883 caldera at a point between the former Danan and Perbuwatan cones. Anak Krakatau has been the site of frequent eruptions since 1927.
Sintesi da Wikipedia
Riassunto in ingleseAnak Krakatoa, or Anak Krakatau, is a volcanic island and an active volcano in Indonesia. On 29 December 1927, Anak Krakatoa first emerged from the caldera formed by the explosive volcanic 1883 eruption of Krakatoa that destroyed the island of Krakatoa. Sporadic eruptive activity has occurred at the site since the late 20th century. A large sector collapse of the volcano occurred on 22 December 2018, causing a deadly tsunami—the 2018 Sunda Strait tsunami. There has been subsequent activity since then in the 2020s. Anak Krakatoa's 4–6 September 2026 eruption caused a fog of ash in the nearby islands of Java, Sumatra, and other surrounding areas. Owing to its young age, the island of Anak Krakatoa is one of several in the area which are of interest to, and the subject of extensive study by, volcanologists.
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Storia delle eruzioni
58 registrateGlossarioCronologia dettagliata
- 2021VEI 2Osservata2021-05-25 – 2024-02-20Anak Krakatau
- 2018VEI 3Osservata2018-06-18 – 2020-04-17Anak Krakatau
- 2017VEI 1Osservata2017-02-17 – 2017-02-19Summit crater
- 2014VEI 1Osservata2014-03-31 – 2014-03-31Anak Krakatau
- 2013VEI 1Osservata2013-03-11 – 2013-03-29Anak Krakatau
- 2013VEI 1Osservata2013-10-31 – 2013-10-31Anak Krakatau
- 2010VEI 2Osservata2010-10-25 – 2012-09-09Anak Krakatau
- 2009VEI 2Osservata2009-03-25 – 2009-09-16Anak Krakatau
- 2007VEI 2Osservata2007-10-23 – 2008-08-30Anak Krakatau
- 2001VEI 1Osservata2001-07-21 – 2001-09-17Anak Krakatau
- 2000VEI 1Osservata2000-05-29 – 2000-10-30Anak Krakatau
- 1999VEI 2Osservata1999-02-05 – 1999-08-16Anak Krakatau
- 1997VEI 2Osservata1997-03-16 – 1997-05-16Anak Krakatau
- 1996VEI 2Osservata1996-07-16 – 1996-10-16Anak Krakatau
- 1994VEI 2Osservata1994-03-19 – 1995-06-16Anak Krakatau
- 1992VEI 1Osservata1992-11-07 – 1993-10-16Anak Krakatau
- 1988VEI 2Osservata1988-02-14 – 1988-04-16Anak Krakatau (S flank 1960-81 cone)
- 1981VEI 1Osservata1981-04-24 – 1981-10-20Anak Krakatau
- 1980VEI 2Osservata1980-03-15 – 1980-12-16Anak Krakatau
- 1979VEI 2Osservata1979-07-15 – 1979-11-16Anak Krakatau
- 1978VEI 1Osservata1978-07-10 – 1978-11-16Anak Krakatau
- 1975VEI 2Osservata1975-03-27 – 1975-10-26Anak Krakatau
- 1972VEI 2Osservata1972-06-10 – 1973-07-01Anak Krakatau
- 1969VEI 2Metodo non indicato1969-07-02 – fine sconosciutaAnak Krakatau
- 1965VEI 1Osservata1965-07-02 – fine sconosciutaAnak Krakatau
- 1959VEI 2Osservata1959-12-16 – 1963-07-02Anak Krakatau
- 1958VEI 2Osservata1958-10-02 – 1959-06-25Anak Krakatau
- 1955VEI 2Osservata1955-02-11 – fine sconosciutaAnak Krakatau
- 1953VEI 2Osservata1953-03-17 – 1953-05-01Anak Krakatau
- 1953VEI 2Osservata1953-09-21 – 1953-11-25Anak Krakatau
- 1952VEI 2Osservata1952-10-10 – 1952-10-11Anak Krakatau
- 1950VEI 2Osservata1950-07-03 – 1950-07-07Anak Krakatau
- 1949VEI 2Osservata1949-05-12 – fine sconosciutaAnak Krakatau
- 1946VEI 2Osservata1946-12-26 – 1947-08-07Anak Krakatau
- 1946VEI 1Osservata1946-07-25 – 1946-07-25Anak Krakatau
- 1945VEI 2Osservata1945-07-02 – fine sconosciutaAnak Krakatau
- 1944VEI 2Osservata1944-07-02 – fine sconosciutaAnak Krakatau
- 1943VEI 2Osservata1943-07-02 – fine sconosciutaAnak Krakatau
- 1942VEI 2Osservata1942-01-29 – 1942-01-30Anak Krakatau
- 1941VEI 2Osservata1941-01-28 – 1941-02-12Anak Krakatau
- 1938VEI 3Osservata1938-07-04 – 1940-07-02Anak Krakatau
- 1937VEI 2Osservata1937-08-06 – 1937-11-23Anak Krakatau
- 1936VEI 1Osservata1936-10-13 – 1936-11-16Anak Krakatau
- 1935VEI 2Osservata1935-01-04 – 1935-07-12Anak Krakatau
- 1932VEI 3Osservata1932-11-14 – 1934-06-09Anak Krakatau
- 1931VEI 2Osservata1931-09-23 – 1932-02-17Anak Krakatau
- 1927VEI 2Osservata1927-12-29 – 1930-08-15Anak Krakatau
- 1883VEI 6Osservata1883-05-20 – 1883-10-21Krakatau Island (Perbuwatan, Danan)
- 1684VEI 3Osservata1684-02-01 – fine sconosciuta
- 1680VEI 3Osservata1680-05 – 1681-11-19Perbuwatan
- 1530VEI ?Osservata1530 – fine sconosciuta
- 1320VEI ?Osservata1320 – fine sconosciuta
- 1150 (±50 anni)VEI ?Osservata1150 – fine sconosciuta
- 1050 (±50 anni)VEI ?Osservata1050 – fine sconosciuta
- 950 (±50 anni)VEI ?Osservata950 – fine sconosciuta
- 850 (±50 anni)VEI ?Osservata850 – fine sconosciuta
- 535VEI 4Osservata535 – fine sconosciuta
- 250 (±50 anni)VEI ?Osservata250 – fine sconosciuta
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