Global Volcanism Program | Volcanic Activity Report on Nishinoshima (Japan)

Volcanic Activity Report on Nishinoshima (Japan) — 16 April-22 April 2014

Smithsonian Institution / US Geological Survey
Weekly Volcanic Activity Report, 16 April-22 April 2014
Managing Editor: Sally Sennert

Please cite this report as:

Global Volcanism Program, 2014. Report on Nishinoshima (Japan) (Sennert, S, ed.). Weekly Volcanic Activity Report, 16 April-22 April 2014. Smithsonian Institution and US Geological Survey. https://volcano.si.edu/showreport.cfm?gvpvar=GVP.WVAR20140416-284096

Nishinoshima

Japan

All times are local (unless otherwise noted)

Based on satellite images, the Tokyo VAAC reported that on 18 April a possible eruption from Nishinoshima produced a plume that rose 2.1 km (7,000 ft) a.s.l. and drifted E.

Source: Tokyo Volcanic Ash Advisory Center (VAAC)

Geological Summary. The small island of Nishinoshima was enlarged when several new islands coalesced during an eruption in 1973-74. Multiple eruptions between 2013 and 2023 completely covered the previous exposed surface and continued to enlarge the island. The island is the summit of a massive submarine volcano that has prominent peaks to the S, W, and NE. The summit of the southern cone rises to within 214 m of the ocean surface 9 km SSE.