Data from the Global Volcanism Program of the Smithsonian Institution
Details for: Hachimantai
A series of explosion craters, some filled by lakes, dot the undulating summit plateau of Hachimantai volcano. Hachimantai was constructed from widely scattered vents during the Pleistocene and is capped with andesitic lavas from vents in the center of the complex. Circular craters are located near Komono-more and Mokko-dake in the center of the plateau. No historical eruptions have been recorded at Hachimantai, but active solfataras are found on the western and southern flanks of the massif. Photo by Ichio Moriya (Kanazawa University).
Volcano Number:283250
Volcano Name:Hachimantai
Country:Japan
Volcano Type:Stratovolcano
Last Eruption:5350 BCE
Elevation:1613m
Tectonic Setting:Subduction zone / Continental crust (> 25 km)
Pop. within 5km:268
Pop. within 10km:1261
Pop. within 30km:89833
Pop. within 100km:3131126
Latitude:39.958
Longitude:140.854



Eruption Data from the Global Volcanism Program of the Smithsonian Institution
Volcano Number Volcano Name Eruption Number Activity Type Explosivity Index Max Explosivity Index Modifier Activity Area Activity Unit Start Evidence Method Start Date End Date
283250 Hachimantai 18070 Confirmed Eruption Radiocarbon (corrected) -7900
283250 Hachimantai 18071 Confirmed Eruption Tephrochronology -5350
Emissions Data from the Global Volcanism Program of the Smithsonian Institution
Sorry. No emissions data found for this volcano.


Data from the Earthchem Library
Sorry. No data exist for this volcano in the EarthChem Library.
Data from the Earthchem Portal


Data from the SESAR Database


Data from the MaGa Database
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