Niigata-Yake-Yama
Niigata-Yakeyama
Kubah lava · Japan · 2400 m

- Tipe
- Kubah lava
- Negara
- Japan
- Wilayah
- Northwestern Pacific Volcanic Regions / Northeast Japan Volcanic Arc
- Ketinggian
- 2400 m
- Koordinat
- 36.921, 138.036
- Letusan terakhir
- 1998
- Kondisi tektonik
- Subduction zone / Continental crust (> 25 km)
- Bentuk lahan
- Minor (Silicic)
- Batuan utama
- Andesite / Basaltic Andesite
Ringkasan geologi
Niigata-Yakeyama, one of several Japanese volcanoes named Yakeyama ("Burning Mountain"), is an andesitic-to-dacitic lava dome in Niigata prefecture in west-central Honshu, about 20 km from the coast. The volcano was constructed on a base of Tertiary mountains beginning about 3,100 years ago. Three major eruptions in the past 1,000 years have produced pyroclastic flows and lava flows that traveled mainly down the Hayakawa river valley to the N and NW. The first of these eruptions, in 887 CE (and possibly 989 CE), produced the Hayakawa pyroclastic flow, which reached the coast, and the massive Mae-yama lava flow, which traveled about 6.5 km down the Hayakawa river valley. The summit lava dome was emplaced during the 1361 CE eruption, and the last magmatic eruption took place in 1773 CE. Eruptive activity since 1773 has consisted of relatively minor phreatic explosions from several radial fissures and explosion craters that cut the summit and flanks of the dome.
Ringkasan Wikipedia
Ringkasan InggrisNiigata-Yake-Yama is an active volcano in Honshu, Japan. A large eruption in 887 AD sent pyroclastic flows to the Japan Sea.
Wikipedia · CC BY-SA · Baca artikel lengkap →
Riwayat letusan
Garis waktu rinci
- 1998VEI 1Teramati1998-03-30 – BerlangsungUpper east flank
- 1997VEI 1Teramati1997-10-29 – 1997-12-10Upper east flank
- 1989VEI 1Teramati1989-04-19 – 1989-04-26Upper East flank
- 1987VEI 1Teramati1987-04-25 – Berlangsung
- 1983VEI 1Teramati1983-04-14 – 1983-04-15
- 1974VEI 2Teramati1974-07-28 – 1974-07-28WNW and NNE side of lava dome
- 1963VEI 1Teramati1963-02-14 – Berlangsung
- 1963VEI 1Teramati1963-07-10 – 1963-09-30
- 1962VEI 1Teramati1962-03-14 – 1962-03-14
- 1949VEI 2Teramati1949-02-05 – 1949-09-13NE-SW fissures, both sides of summit
- 1854VEI ?Teramati1854 – BerlangsungNW flank
- 1852VEI 2Teramati1852-11-01 – 1853-05NW flank
- 1773VEI 3Teramati1773 – Berlangsung
- 1361VEI 3Teramati1361 – Berlangsung
- 989VEI ?Teramati989 – Berlangsung
- 887VEI 4Teramati887 – Berlangsung
- 813VEI ?Teramati813 – Berlangsung
- 700 SM (±100 tahun)VEI 3Perkiraan geologiBCE 700 – Berlangsung
- 1750 SMVEI ?Perkiraan geologiBCE 1750 – Berlangsung
- 1900 SM (±1050 tahun)VEI ?Perkiraan geologiBCE 1900 – Berlangsung
Tautan eksternal
⚠ Untuk referensi saja. Bukan untuk tanggap darurat.