Do this automatically from now on
Nasu VulkanStratovulkan 1915 m / 6,283 ft
Honshu, Japan, 37.12°N / 139.97°E Aktueller Status: nicht aktiv (1 von 5)
Typische Aktivität: phreatic eruptions
Ausbrüche des Nasu: 1963, 1960, 1953, 1881, 1846, 1410, 1408, 1404, 1397 Letzte Erdbeben in der Nähe:
Beschreibung:The Nasu volcanic group consists of a N-S-trending cluster of stratovolcanoes and lava domes at the north end of the Kanto Plain. Nasu volcanic activity dates back about 500,000 years. Growth of three large basaltic-to-dacitic stratovolcanoes with life spans of about 200,000 years was followed by construction of three smaller andesitic stratovolcanoes, Asahi-dake, Futamata-yama, and Chausu-dake. Activity during the last 55,000 years included the collapse of Asahi-dake volcano about 30-40,000 years ago producing the massive Ofuji-san debris-avalanche deposit, which blankets a broad area SE of the volcano. The youngest volcano, Chausu-dake, began forming about 16,000 years ago. Six magmatic eruptions took place since then, the latest in 1408-1410, when the youngest summit lava dome, Chausu-dake, was 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 5000 years.(from: Smithsonian / GVP volcano information) |
 | ||||||||||||||||||||||||||||||||||||
