Papua Nugini · Stratovolkan
Pulau Ritter
Ritter Island
- Tipe
- Stratovolkan
- Ketinggian
- 75 m
- Letusan terakhir
- 2007
- Tipe
- Stratovolkan
- Negara
- Papua Nugini
- Wilayah
- Pasifik Barat Daya / Bismarck Volcanic Arc
- Ketinggian
- 75 m
- Koordinat
- -5.519, 148.115
- Letusan terakhir
- 2007
- Kondisi tektonik
- Zona subduksi / Kerak benua (> 25 km)
- Bentuk lahan
- Komposit
- Batuan utama
- Basal / Pikrobasal
Ringkasan geologi
Prior to 1888, Ritter Island was a steep-sided, nearly circular island about 780 m high between Umboi and Sakar Islands. Several historical explosive eruptions had been recorded prior to 1888, when large-scale slope failure destroyed the summit of the conical basaltic-andesitic volcano, leaving the arcuate 140-m-high island with a steep west-facing scarp. Devastating tsunamis were produced by the collapse and swept the coast of Papua New Guinea and offshore islands. Two minor post-collapse explosive eruptions, during 1972 and 1974, occurred offshore within the largely submarine 3.5 x 4.5 km breached depression formed by the collapse.
Ringkasan Wikipedia
Ringkasan InggrisRitter Island is a small, uninhabited, crescent-shaped volcanic island 100 kilometres (62 mi) north-east of New Guinea, in the Bismarck Sea, situated between Umboi Island and Sakar Island in the Morobe Province of Papua New Guinea (PNG) and close to New Britain island.
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Riwayat letusan
12 tercatatGlosariumGaris waktu rinci
- 2007VEI 1Teramati2007-05-19 – 2007-05-21
- 2006VEI 1Teramati2006-10-17 – 2006-10-17
- 2002VEI 2Metode tidak dinyatakan2002-08-02 – 2002-08-02
- 1974VEI 1Teramati1974-10-17 – 1974-10-17600-900 m W of Ritter Island
- 1972VEI 1Teramati1972-10-09 – 1972-10-09West of Ritter Island
- 1888VEI 2Teramati1888-03-13 – 1888-03-13
- 1887VEI 2Metode tidak dinyatakan1887-02-02 – 1887-02-05Volcano Uncertain: Probably Ritter or Langila
- 1885VEI ?Metode tidak dinyatakan1885-01-13 – akhir tidak diketahui
- 1878VEI ?Metode tidak dinyatakan1878-12-31 – akhir tidak diketahui
- 1848VEI ?Metode tidak dinyatakan1848-04-13 – 1848-07-10
- 1793VEI 2Teramati1793-06-29 – akhir tidak diketahui
- 1700VEI 3Teramati1700-04-03 – 1700-04-06
Gunung api terdekat
Tautan eksternal
⚠ Untuk referensi saja. Bukan untuk tanggap darurat.