Unnamed

No photo available for this volcano
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 8.92°S
  • 158.03°E

  • -240 m
    -787 ft

  • 255061
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

Most Recent Bulletin Report: September 1992 (BGVN 17:09) Citation IconCite this Report


Thermal plumes detected over seamount crater

A bathymetric survey in the vicinity of Kavachi volcano was carried out on 11 August by the HMNZS Tui. The ship made three parallel transits, ~1,200 m apart, over the summit of the unnamed seamount ~7 km NW of Kavachi. The summit is mostly flat, with a depth of at least 130 m found on each pass. The transit farthest NE showed a shallow and a deep crater on the tracing of the 12 kHz echo sounder. The 44-kHz echo sounder showed two small plumes rising to mid-water depth on either side of the smaller crater.

Information Contacts: L. Hall, Defence Scientific Establishment, and Lt. Cdr. G. Craig, HMNZS Tui, Auckland Naval Base, New Zealand.

The Global Volcanism Program has no Weekly Reports available for Unnamed.

Bulletin Reports - Index


Reports are organized chronologically and indexed below by Month/Year (Publication Volume:Number), and include a one-line summary. Click on the index link or scroll down to read the reports.

09/1992 (BGVN 17:09) Thermal plumes detected over seamount crater




Information is preliminary and subject to change. All times are local (unless otherwise noted)


September 1992 (BGVN 17:09) Citation IconCite this Report


Thermal plumes detected over seamount crater

A bathymetric survey in the vicinity of Kavachi volcano was carried out on 11 August by the HMNZS Tui. The ship made three parallel transits, ~1,200 m apart, over the summit of the unnamed seamount ~7 km NW of Kavachi. The summit is mostly flat, with a depth of at least 130 m found on each pass. The transit farthest NE showed a shallow and a deep crater on the tracing of the 12 kHz echo sounder. The 44-kHz echo sounder showed two small plumes rising to mid-water depth on either side of the smaller crater.

Information Contacts: L. Hall, Defence Scientific Establishment, and Lt. Cdr. G. Craig, HMNZS Tui, Auckland Naval Base, New Zealand.

The Global Volcanism Program is not aware of any Holocene eruptions from Unnamed. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Unnamed page in the LaMEVE (Large Magnitude Explosive Volcanic Eruptions) database, a part of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).

The Global Volcanism Program has no synonyms or subfeatures listed for Unnamed.

The Global Volcanism Program has no photographs available for Unnamed.

Smithsonian Sample Collections Database


There are no samples for Unnamed in the Smithsonian's NMNH Department of Mineral Sciences Rock and Ore collection.

Affiliated Sites