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Ata Caldera

Ata

Kaldera · Japan · 924 m

Kaimon volcano is the youngest and most prominent feature of the Ibusuki volcanic field at the southern tip of Kyushu, seen here from the N. It was constructed during the last 4,000 years and has been the source of historical eruptions in the volcanic field. The Ibusuki field is located W of the Pleistocene Ata caldera and contains numerous small cones, maars, and the 4.5-km-wide Ikedoko caldera.
Kaimon volcano is the youngest and most prominent feature of the Ibusuki volcanic field at the southern tip of Kyushu, seen here from the N. It was constructed during the last 4,000 years and has been the source of historical eruptions in the volcanic field. The Ibusuki field is located W of the Pleistocene Ata caldera and contains numerous small cones, maars, and the 4.5-km-wide Ikedoko caldera. · Foto: Photo by Lee Siebert, 1988 (Smithsonian Institution). · Wikimedia Commons
Tipe
Kaldera
Negara
Japan
Wilayah
Western Pacific Volcanic Regions / Ryukyu Volcanic Arc
Ketinggian
924 m
Koordinat
31.220, 130.570
Letusan terakhir
885
Kondisi tektonik
Subduction zone / Continental crust (> 25 km)
Bentuk lahan
Caldera
Batuan utama
Andesite / Basaltic Andesite
Ringkasan geologi

The submerged 15 x 25 km Ata caldera under Kagoshima Bay is one of several large calderas in southern Kyushu and the source of major pyroclastic flows associated with its formation more than 40,000 years ago. The National Catalogue of the Active Volcanoes of Japan (JMA, 2013) included features of the Ibusuki field as part of the Ata post-caldera system. That area consists of numerous central cones and maars, the 4.5-km-wide Ikeda caldera, and Kaimondake stratovolcano. The symmetrical andesitic Kaimondake is the most prominent feature, and is capped by a lava dome. Ibusuki has been very active during the Holocene, forming the Ikeda caldera about 4,600 years ago, numerous maars and lava domes. Kaimondake formed during the last 4,000 years, from which all eruptive activity has occurred after about 2,650 years ago. Its last eruption took place in the 9th century. While listed as features of the Ata caldera, JMA (2013) simultaneously listed Kaimondake and the combination of Ikeda and Yamagawa as distinct volcanoes.

Ringkasan Wikipedia

Ringkasan Inggris

Ata Caldera , containing the Ata North Caldera, and the Ata South Caldera, which in turn contains Mount Kaimon and Ikeda Caldera amongst other volcanoes, is a massive, ill defined, mostly submerged volcanic caldera structure associated with the southern portions of Kagoshima Bay.

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Riwayat letusan

Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu
5050 BCE~4828 BCE · 1 letusan · VEI maks. ?2828 BCE~2606 BCE · 1 letusan · VEI maks. 52162 BCE~1940 BCE · 1 letusan · VEI maks. 41940 BCE~1717 BCE · 1 letusan · VEI maks. 41717 BCE~1495 BCE · 3 letusan · VEI maks. 41495 BCE~1273 BCE · 1 letusan · VEI maks. ?829 BCE~607 BCE · 2 letusan · VEI maks. 4384 BCE~162 BCE · 1 letusan · VEI maks. 4162 BCE~60 · 2 letusan · VEI maks. 460~282 · 3 letusan · VEI maks. 4504~726 · 4 letusan · VEI maks. 4726~949 · 6 letusan · VEI maks. 41393~1615 · 1 letusan · VEI maks. ?5050 BCE3495 BCE1717 BCE162 BCE1393

Garis waktu rinci

  1. 1615VEI ?Perkiraan geologi
    1615-08-07 – Berlangsung
    Kaimon
  2. 885VEI 4Teramati
    885-08-29 – 885-09-28
    Kaimon
  3. 882VEI 2Perkiraan geologi
    882-11 – Berlangsung
    Kaimon
  4. 874VEI 4Teramati
    874-03-29 – 874-07
    Kaimon
  5. 866VEI 2Perkiraan geologi
    866-05 – Berlangsung
    Kaimon
  6. 860VEI 2Perkiraan geologi
    860-04 – Berlangsung
    Kaimon
  7. 770VEI 4Perkiraan geologi
    770 – Berlangsung
    Kaimon
  8. 720VEI 4Perkiraan geologi
    720 – Berlangsung
    Kaimon
  9. 660VEI 4Perkiraan geologi
    660 – Berlangsung
    Kaimon
  10. 600VEI 4Perkiraan geologi
    600 – Berlangsung
    Kaimon
  11. 550VEI 2Perkiraan geologi
    550 – Berlangsung
    Kaimon
  12. 270VEI 3Perkiraan geologi
    270 – Berlangsung
    Kaimon
  13. 150VEI 4Perkiraan geologi
    150 – Berlangsung
    Kaimon
  14. 130VEI 4Perkiraan geologi
    130 – Berlangsung
    Kaimon
  15. 30VEI 3Perkiraan geologi
    30 – Berlangsung
    Kaimon
  16. 80 SMVEI 4Perkiraan geologi
    BCE 80 – Berlangsung
    Kaimon
  17. 270 SMVEI 4Perkiraan geologi
    BCE 270 – Berlangsung
    Kaimon
  18. 650 SMVEI 4Perkiraan geologi
    BCE 650 – Berlangsung
    Kaimon
  19. 700 SMVEI 2Perkiraan geologi
    BCE 700 – Berlangsung
    Kaimon
  20. 1450 SMVEI ?Perkiraan geologi
    BCE 1450 – Berlangsung
    Mizunashi, Kagami, Ikezoko maars
  21. 1500 SMVEI 4Perkiraan geologi
    BCE 1500 – Berlangsung
    Kaimon
  22. 1550 SMVEI ?Perkiraan geologi
    BCE 1550 – Berlangsung
    Nabeshima-dake
  23. 1610 SMVEI 3Perkiraan geologi
    BCE 1610 – Berlangsung
    Kaimon
  24. 1780 SMVEI 4Perkiraan geologi
    BCE 1780 – Berlangsung
    Kaimon
  25. 2010 SMVEI 4Perkiraan geologi
    BCE 2010 – Berlangsung
    Kaimon
  26. 2690 SM (±75 tahun)VEI 5Perkiraan geologi
    BCE 2690 – Berlangsung
    Ikeda-ko caldera
  27. 5050 SMVEI ?Perkiraan geologi
    BCE 5050 – Berlangsung
    Unagi, Narikawa and Yamakawa maars

Tautan eksternal

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