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Report on False Reports (Unknown) — October 1986

False Reports

Bulletin of the Global Volcanism Network, vol. 11, no. 10 (October 1986)
Managing Editor: Lindsay McClelland.

False Reports (Unknown) Kermadec Islands: Violent underwater explosion reported

Please cite this report as:

Global Volcanism Program, 1986. Report on False Reports (Unknown) (McClelland, L., ed.). Bulletin of the Global Volcanism Network, 11:10. Smithsonian Institution. https://doi.org/10.5479/si.GVP.BGVN198610-600600

False Reports


Lat Unknown, Unknown; summit elev. m

All times are local (unless otherwise noted)

On 11 November at 0710, the yacht Nutra, traveling from Rarotonga to Auckland, was shaken violently in what was described as an underwater explosion [but see BGVN 11:11]. Disturbed sea conditions preceded the main explosion.

The reported location is ~100 km E of the trend of the Tonga-Kermadec chain, over the W edge of the Tonga Trench at its S end; 570 km NNE of Raoul Island and 380 km S of Tongatapu. We are not aware of previous reports of activity in this area. The Worldwide Standardized Seismic Network recorded no nearby earthquakes at the time, although aftershocks of the M 8.2 Kermadec Islands event of 20 October continued 400 km to the S.

Geological Summary. False or otherwise incorrect reports of volcanic activity.

Information Contacts: J. Latter, DSIR Geophysics, Wellington; NEIC.