Report on Kita-Ioto (Japan) — 10 May-16 May 2023
Smithsonian Institution / US Geological Survey
Weekly Volcanic Activity Report, 10 May-16 May 2023
Managing Editor: Sally Sennert.
Please cite this report as:
Global Volcanism Program, 2023. Report on Kita-Ioto (Japan) (Sennert, S, ed.). Weekly Volcanic Activity Report, 10 May-16 May 2023. Smithsonian Institution and US Geological Survey.
Kita-Ioto
Japan
25.424°N, 141.284°E; summit elev. 792 m
All times are local (unless otherwise noted)
Japan Coast Guard reported that a small area of bluish-white discolored water above Funka Asane, a submarine vent 4-5 km NW of Kita-Ioto, was visible on 11 May. This was the first time discolored water was seen over the vent in about two years.
Geological Summary. No historical eruptions have occurred from the deeply eroded Kita-Ioto stratovolcano, which forms a steep-sided basaltic cone rising about 800 m above the sea. However, eruptions have been recorded since the 18th century from Funka Asane, a submarine vent 4-5 km NW of the island. Kita-Ioto is the northernmost of the Kazan Retto (Volcano Islands), located in the middle of the Izu-Marianas arc.
Source: Japan Coast Guard
