Tonga · Rekahan erupsi
West Mata
- Tipe
- Rekahan erupsi
- Ketinggian
- 1174 m (bawah laut)
- Letusan terakhir
- 2009
- Tipe
- Rekahan erupsi
- Negara
- Tonga
- Wilayah
- Tonga & Kermadec / Northeast Lau Basin Volcano Group
- Ketinggian
- 1174 m (bawah laut)
- Koordinat
- -15.100, -173.750
- Letusan terakhir
- 2009
- Kondisi tektonik
- Zona subduksi / Kerak samudra (< 15 km)
- Bentuk lahan
- Gugusan gunung api
- Batuan utama
- Andesit / Andesit basaltik
Ringkasan geologi
West Mata, a submarine volcano rising to within 1,174 m of the ocean surface, is located in the northeastern Lau Basin at the northern end of the Tofua arc, about 200 km SW of Samoa and north of the Curacoa submarine volcano. Discovered during a November 2008 NOAA Vents Program expedition it was found to be producing submarine hydrothermal plumes consistent with recent lava effusion. A return visit in May 2009 documented explosive and effusive activity from two closely spaced vents, one at the summit, and the other on the SW rift zone.
Ringkasan Wikipedia
Ringkasan InggrisWest Mata is an active submarine volcano located in the northeastern Lau Basin, roughly 200 km (124 mi) southwest of the Samoan Islands. It is part of the Tonga-Kermadec volcanic arc, which stretches from the North Island of New Zealand to Samoa. The volcano was first discovered in 2008 by scientists aboard the R/V Thompson research vessel, using sonar mapping and a remotely operated vehicle (ROV) to explore the seafloor. At the same time West Mata was discovered, multiple neighboring volcanoes—most of them hydrothermally active—were discovered as well, including Volcano O, Tafu-Maka, Northern Matas and East Mata.
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Riwayat letusan
1 tercatatGlosariumGaris waktu rinci
- 2008VEI 0Teramati2008-11-16 – 2009-05-16Prometheus and Hades vents
Gunung api terdekat
Tautan eksternal
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