Giappone · Stratovulcano
Mount Nasu
Nasudake
- Tipo
- Stratovulcano
- Altitudine
- 1915 m
- Ultima eruzione
- 1963

- Tipo
- Stratovulcano
- Paese
- Giappone
- Regione
- Pacifico nord-occidentale / Northeast Japan Volcanic Arc
- Altitudine
- 1915 m
- Coordinate
- 37.125, 139.963
- Ultima eruzione
- 1963
- Contesto tettonico
- Zona di subduzione / Crosta continentale (> 25 km)
- Forma vulcanica
- Composito
- Roccia principale
- Andesite / Andesite basaltica
Sintesi geologica
The Nasudake volcanic group consists of a N-S-trending cluster of stratovolcanoes and lava domes at the north end of the Kanto Plain. Volcanic activity dates back about 500,000 years. Growth of three large basaltic-to-dacitic stratovolcanoes, each lasting about 200,000 years, was followed by construction of three smaller andesitic stratovolcanoes (Asahidake, Futamatayama, and Chausudake). Activity during the last 55,000 years included the collapse of Asahidake ~30-40,000 years ago, producing the massive Ofujisan debris-avalanche deposit, which covers a broad area SE of the volcano. Chausudake, began forming about 16,000 years ago, and has had six known magmatic eruptions, with the latest in 1408-1410 CE that built the summit lava dome formed. These eruptions produced block-and-ash flows and concluded with the extrusion of lava flows. Smaller phreatic eruptions have occurred every few hundred years during the past 5,000 years.
Sintesi da Wikipedia
Riassunto in ingleseMount Nasu is a group of complex volcanoes located in the northeast part of Nikkō National Park, Japan. The tallest peak is Sanbonyari Peak at a height of 1,916.9 m (6,289 ft). Mount Nasu is one of the 100 Famous Japanese Mountains.
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Storia delle eruzioni
21 registrateGlossarioCronologia dettagliata
- 1963VEI 1Metodo non indicato1963-07-10 – 1963-07-11Chausu-dake
- 1963VEI 1Osservata1963-11-20 – 1963-11-21Chausu-dake (west side)
- 1960VEI 1Osservata1960-10-10 – fine sconosciutaChausu-dake (50 m north of 1953 vent)
- 1953VEI 1Osservata1953-10-24 – 1953-10-29Chausu-dake (1881 crater)
- 1881VEI 1Osservata1881-07-01 – fine sconosciutaChausu-dake (west and NW side of summit)
- 1846VEI 1Osservata1846-08-16 – fine sconosciutaChausu-dake
- 1410VEI 3Osservata1410-03-05 – fine sconosciutaChausu-dake
- 1408VEI 3Osservata1408-02-24 – fine sconosciutaChausu-dake
- 1404VEI 3Osservata1404-02-11 – fine sconosciutaChausu-dake
- 1397VEI 3Osservata1397-02-17 – fine sconosciutaChausu-dake
- 330 (±200 anni)VEI 2Stima geologica330 – fine sconosciutaChausu-dake
- 250 (±200 anni)VEI 3Stima geologica250 – fine sconosciutaChausu-dake
- 250 a.C.VEI 2Stima geologica250 a.C. – fine sconosciutaChausu-dake
- 700 a.C. (±200 anni)VEI 3Stima geologica700 a.C. – fine sconosciutaChausu-dake
- 1440 a.C. (±500 anni)VEI 2Stima geologica1440 a.C. – fine sconosciutaChausu-dake
- 2000 a.C. (±1450 anni)VEI 2Stima geologica2000 a.C. – fine sconosciutaChausu-dake
- 4350 a.C. (±950 anni)VEI 2Stima geologica4350 a.C. – fine sconosciutaChausu-dake
- 5550 a.C. (±500 anni)VEI 3Stima geologica5550 a.C. – fine sconosciutaChausu-dake
- 6050 a.C.VEI 2Stima geologica6050 a.C. – fine sconosciutaChausu-dake
- 7850 a.C.VEI 3Stima geologica7850 a.C. – fine sconosciutaChausu-dake
- 8550 a.C. (±1500 anni)VEI 2Stima geologica8550 a.C. – fine sconosciutaChausu-dake
Vulcani nelle vicinanze
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