Vai al contenuto principale
← Torna alla mappa
⇄ Confronta

Mount Haruna

Harunasan

Stratovulcano · Japan · 1449 m

Harunasan has a small summit caldera containing Haruna-Fuji cone (right). Viscous lava flows and lava domes have formed within and around the caldera. Its western side is currently filled by Lake Haruna, which is visible to the left of the cone. The Futatsudake lava dome, outside the caldera to the E, was the source of two large explosive eruptions during the 6th century CE. This view from the NE also shows a plume emanating from Asamayama on the distant horizon above Lake Haruna.
Harunasan has a small summit caldera containing Haruna-Fuji cone (right). Viscous lava flows and lava domes have formed within and around the caldera. Its western side is currently filled by Lake Haruna, which is visible to the left of the cone. The Futatsudake lava dome, outside the caldera to the E, was the source of two large explosive eruptions during the 6th century CE. This view from the NE also shows a plume emanating from Asamayama on the distant horizon above Lake Haruna. · Foto: Photo by Ichio Moriya (Kanazawa University). · Wikimedia Commons
Tipo
Stratovulcano
Paese
Japan
Regione
Northwestern Pacific Volcanic Regions / Northeast Japan Volcanic Arc
Altitudine
1449 m
Coordinate
36.477, 138.851
Ultima eruzione
550
Contesto tettonico
Subduction zone / Continental crust (> 25 km)
Forma vulcanica
Composite
Roccia principale
Andesite / Basaltic Andesite
Sintesi geologica

Harunasan volcano is truncated by a small summit caldera containing the symmetrical post-caldera pyroclastic cone of Haruna-Fuji. Harunasan volcano dates back prior to 300,000 years ago and had caldera-producing eruptions at about 200,000 and 40,000 years ago. Viscous lava flows and lava domes were subsequently extruded within and around the caldera, the western side of which is currently partially filled by Lake Haruna. The Futatsudake lava dome east of the caldera was the source of two large explosive eruptions during the 6th century CE.

Sintesi da Wikipedia

Riassunto in inglese

Mount Haruna is a dormant stratovolcano in Gunma Prefecture, in the Kantō region of eastern Honshū, Japan.

Wikipedia · CC BY-SA · Leggi l'articolo completo →

Storia delle eruzioni

Riepilogo (VEI nel tempo)
Fai clic su una barra per vedere le singole eruzioni
450~460 · 1 eruzioni · VEI max. 3520~530 · 1 eruzioni · VEI max. 4540~550 · 1 eruzioni · VEI max. 5450470500520540

Cronologia dettagliata

  1. 550 (±10 anni)VEI 5Stima geologica
    550-06-01 – In corso
    Futatsu-dake
  2. 520 (±10 anni)VEI 4Stima geologica
    520-06-01 – In corso
    Futatsu-dake
  3. 450 (±50 anni)VEI 3Stima geologica
    450 – In corso
    Futatsu-dake

Link esterni

⚠ Solo a scopo informativo. Non adatto a situazioni di emergenza.