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Manam

Estratovolcán · Papua New Guinea · 1807 m

The 10-km-wide island of Manam is one of Papua New Guinea's most active volcanoes. Four large radial valleys extend from the unvegetated summit to its lower flanks and two summit craters are present. Most eruptions during the past century have originated from the southern crater, concentrating eruptive products into the SE avalanche valley, seen here from off the east coast of the island. Frequent eruptions have been recorded since 1616.
The 10-km-wide island of Manam is one of Papua New Guinea's most active volcanoes. Four large radial valleys extend from the unvegetated summit to its lower flanks and two summit craters are present. Most eruptions during the past century have originated from the southern crater, concentrating eruptive products into the SE avalanche valley, seen here from off the east coast of the island. Frequent eruptions have been recorded since 1616. · Foto: Photo by Wally Johnson (Australia Bureau of Mineral Resources). · Wikimedia Commons
Tipo
Estratovolcán
País
Papua New Guinea
Región
Southwestern Pacific Volcanic Regions / Bismarck Volcanic Arc
Altitud
1807 m
Coordenadas
-4.080, 145.037
Última erupción
2026
Contexto tectónico
Subduction zone / Continental crust (> 25 km)
Forma volcánica
Composite
Roca principal
Basalt / Picro-Basalt
Resumen geológico

The 10-km-wide island of Manam, lying 13 km off the northern coast of mainland Papua New Guinea, is one of the country's most active volcanoes. Four large radial valleys extend from the unvegetated summit of the conical basaltic-andesitic stratovolcano to its lower flanks. These valleys channel lava flows and pyroclastic avalanches that have sometimes reached the coast. Five small satellitic centers are located near the island's shoreline on the northern, southern, and western sides. Two summit craters are present; both are active, although most observed eruptions have originated from the southern crater, concentrating eruptive products during much of the past century into the SE valley. Frequent eruptions, typically of mild-to-moderate scale, have been recorded since 1616. Occasional larger eruptions have produced pyroclastic flows and lava flows that reached flat-lying coastal areas and entered the sea, sometimes impacting populated areas.

Resumen de Wikipedia

Resumen en inglés

Manam, known locally as Manam Motu, is an island located in the Bismarck Sea across the Stephan Strait from Yawar on the northeast coast of mainland Papua New Guinea's Bogia District. The island is 10 kilometers (6.2 mi) wide, and was created by the activity of the Manam Volcano, one of the country’s most active. The island was evacuated in 2004 and its residents resettled elsewhere in Papua New Guinea, but many have begun to return despite concerns of future volcanic activity. Manam is still erupting as of January 2024.

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Historial de erupciones

Resumen (VEI en el tiempo)
Haga clic en una barra para ver erupciones individuales
1616~1656 · 2 erupciones · VEI máx. 21696~1737 · 1 erupciones · VEI máx. ?1817~1857 · 1 erupciones · VEI máx. 21857~1897 · 4 erupciones · VEI máx. 21897~1938 · 16 erupciones · VEI máx. 41938~1978 · 12 erupciones · VEI máx. 31978~2018 · 10 erupciones · VEI máx. 416161696181718971978

Línea de tiempo detallada

  1. 2018VEI 4Observado
    2018-06-10 – 2026-03-16
    Southern and Main Craters
  2. 2014VEI 4Observado
    2014-06-29 – 2017-09-02
    Southern and Main craters
  3. 2010VEI 3Observado
    2010-08-10 – 2013-12-15
    South Crater, Main Crater
  4. 2004VEI 4Observado
    2004-10-24 – 2009-12-12
    South Crater, Main Crater
  5. 2003VEI 1Observado
    2003-05-17 – 2003-05-23
    Main Crater
  6. 2003VEI 1Observado
    2003-10-26 – 2004-03-28
    Main Crater
  7. 2002VEI 3Observado
    2002-01-13 – 2002-05-21
    South Crater
  8. 2002VEI 2Observado
    2002-10-31 – En curso
  9. 2001VEI 2Observado
    2001-06-14 – 2001-06-25
  10. 2000VEI 2Observado
    2000-06-03 – 2000-06-04
    South Crater
  11. 1974VEI 3Observado
    1974-03-04 – 1999-11-09
    South Crater, Main Crater
  12. 1965VEI 2Observado
    1965-07-02 – 1966-01-25
    South Crater
  13. 1963VEI 2Observado
    1963-02-15 – 1963-05-08
    South Crater
  14. 1963VEI 2Observado
    1963-11-26 – 1964-04-16
    South Crater
  15. 1962VEI 2Observado
    1962-04-16 – En curso
    South Crater
  16. 1961VEI 2Observado
    1961-07-16 – 1961-09-16
    South Crater
  17. 1959VEI 2Observado
    1959-06-16 – 1959-07-16
    South Crater
  18. 1959VEI 2Observado
    1959-12-16 – 1960-12-16
    Main Crater, South Crater
  19. 1956VEI 3Observado
    1956-12-08 – 1958-08-16
    South Crater, Main Crater
  20. 1954VEI 2Observado
    1954-05-16 – 1954-06-16
  21. 1953VEI 2Observado
    1953-04-16 – 1953-08-16
  22. 1946VEI 3Observado
    1946-12-01 – 1947-09
    South Crater
  23. 1936VEI 3Observado
    1936-09 – 1939
    Main Crater, South Crater
  24. 1932VEI 2Observado
    1932 – 1934
  25. 1926VEI 2Observado
    1926-03 – 1928-03-01
  26. 1925VEI 2Observado
    1925 – En curso
  27. 1924VEI 2Estimación geológica
    1924 – En curso
  28. 1923VEI 2Estimación geológica
    1923 – En curso
  29. 1922VEI 3Observado
    1922 – En curso
  30. 1920VEI 2Observado
    1920-12-05 – 1921-03
  31. 1919VEI 4Observado
    1919-08-11 – En curso
    South Crater, Main Crater
  32. 1917VEI 2Observado
    1917 – En curso
  33. 1909VEI 2Observado
    1909 – 1914
  34. 1907VEI ?Estimación geológica
    1907 – En curso
  35. 1904VEI ?Observado
    1904-04-30 – En curso
  36. 1904VEI 3Observado
    1904-10-26 – 1904-10-27
  37. 1901VEI ?Estimación geológica
    1901 – 1902
  38. 1899 (±1 años)VEI 2Observado
    1899 – En curso
    Main Crater, South Crater
  39. 1887VEI 2Observado
    1887-06 – 1895
  40. 1885VEI ?Observado
    1885-05 – En curso
  41. 1884VEI ?Estimación geológica
    1884 – En curso
  42. 1877VEI 2Observado
    1877-10-29 – 1877-11-13
    South Crater
  43. 1830VEI 2Observado
    1830 – En curso
  44. 1700VEI ?Observado
    1700-04-02 – En curso
    South Crater
  45. 1643VEI 2Observado
    1643-04-21 – En curso
  46. 1616VEI 2Observado
    1616-07-06 – En curso

Enlaces externos

⚠ Solo como referencia. No apto para respuesta ante emergencias.