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Country: | Japan | |
| Subregion Name: | Hokkaido (Japan) | ||
| Volcano Number: | 0805-082 | ||
| Volcano Type: | Stratovolcano | ||
| Volcano Status: | Radiocarbon | ||
| Last Known Eruption: | 1800 ± 50 years | ||
| Summit Elevation: | 1660 m | 5,446 feet | |
| Latitude: | 44.073°N | 44°4'24"N | |
| Longitude: | 145.126°E | 145°7'35"E | |
| Rausu is an andesitic-to-dacitic stratovolcano with summit lava domes on the Shiretoko Peninsula in NE Hokkaido. The 1660-m-high volcano is located along a ridge 5 km SW of Shiretoko-Iwo-san volcano, the NE-most Holocene volcano in Hokkaido. Young lava flows descent the NW flank and broad areas along the SE flank of Rausu, and an older lava flow traveled about 9 km to the west, reaching the coast of the Sea of Okhotsk along a broad front. Rausu-dake volcano produced eruptions of pumiceous tephras with associated pyroclastic flows about 2200, 1400, and 800 years ago. Recent work has documented a pyroclastic-flow deposit that overlies the 1739 tephra from Tarumai volcano in SW Hokkaido. Stratigraphic relationships place this eruption, the most recent known from Rausu, between about 1750 and 1850 AD. | |||
