Antartide · Stratovulcano
Erebus
- Tipo
- Stratovulcano
- Altitudine
- 3794 m
- Ultima eruzione
- 2026
- Tipo
- Stratovulcano
- Paese
- Antartide
- Regione
- Antartide e Scotia / McMurdo Volcanic Province
- Altitudine
- 3794 m
- Coordinate
- -77.530, 167.170
- Ultima eruzione
- 2026
- Contesto tettonico
- Intraplacca / Crosta continentale (> 25 km)
- Forma vulcanica
- Composito
- Roccia principale
- Fonolite
Sintesi geologica
Mount Erebus overlooks the McMurdo research station on Ross Island and is the largest of three major volcanoes forming the roughly triangular Ross Island. The summit of the dominantly phonolitic volcano has been modified by one or two generations of caldera formation. A summit plateau at about 3,200 m elevation marks the rim of the youngest caldera, which formed during the late-Pleistocene and within which the modern cone was constructed. An elliptical 500 x 600 m, 110-m-deep crater truncates the summit and contains an active lava lake within a 250-m-wide, 100-m-deep inner crater; other lava lakes are sometimes present. The glacier-covered volcano was erupting when first sighted by Captain James Ross in 1841. A persistent lava-lake, with minor explosions punctuated by occasional larger Strombolian explosions that eject bombs onto the crater rim, has been documented since 1972, but nearly continuous activity has probably been occurring for much longer.
Sintesi da Wikipedia
Riassunto in ingleseMount Erebus is the southernmost active volcano on Earth, located on Ross Island in the Ross Dependency in Antarctica. With a summit elevation of 3,792 metres (12,441 ft), it is the second most prominent mountain in Antarctica and the second-highest volcano in Antarctica. It is the highest point on Ross Island, which is also home to three inactive volcanoes: Mount Terror, Mount Bird, and Mount Terra Nova. It makes Ross Island the sixth-highest island on Earth by highest point.
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Storia delle eruzioni
22 registrateGlossarioCronologia dettagliata
- 1972VEI 1Osservata1972-01-03 – fine sconosciuta
- 1972VEI 2Osservata1972-12-16 – 2026-03-17
- 1963VEI 0Osservata1963-11-16 – fine sconosciuta
- 1957VEI ?Metodo non indicato1957-07-02 – 1958-07-02
- 1955VEI 2Osservata1955-07-02 – fine sconosciuta
- 1947VEI 2Osservata1947-02-16 – fine sconosciuta
- 1915VEI 2Osservata1915-03-22 – fine sconosciuta
- 1915VEI 2Osservata1915-08-16 – fine sconosciuta
- 1912VEI 2Osservata1912-12-12 – fine sconosciuta
- 1911VEI 2Osservata1911-04-16 – 1911-06-16
- 1911VEI 2Osservata1911-10-16 – fine sconosciuta
- 1908VEI 2Osservata1908-03-16 – 1908-11-16
- 1903VEI 0Osservata1903-01-01 – fine sconosciuta
- 1900VEI 2Metodo non indicato1900-02-16 – fine sconosciuta
- 1841VEI 1Osservata1841-01-28 – 1841-02-16
- 950 (±4000 anni)VEI 0Stima geologica950 – fine sconosciuta
- 2050 a.C. (±3000 anni)VEI 0Stima geologica2050 a.C. – fine sconosciutaWestern Crater (Upper Ice Tower flow)
- 2950 a.C. (±300 anni)VEI 0Stima geologica2950 a.C. – fine sconosciutaNorth flank (Lower Hut lava flow)
- 4050 a.C. (±500 anni)VEI 0Stima geologica4050 a.C. – fine sconosciutaLower Ice Tower Ridge, S lava flows
- 4550 a.C. (±500 anni)VEI 0Stima geologica4550 a.C. – fine sconosciutaNE flank
- 7050 a.C. (±2000 anni)VEI 0Stima geologica7050 a.C. – fine sconosciutaNW flank
- 8050 a.C. (±5000 anni)VEI 0Stima geologica8050 a.C. – fine sconosciutaNNW flank
Vulcani nelle vicinanze
Link esterni
⚠ Solo a scopo informativo. Non adatto a situazioni di emergenza.