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  • Country
  • Subregion Name
  • Primary Volcano Type
  • Last Known Eruption
  • 3.03°S
  • 147.78°E

  • -1300 m
    -4264 ft

  • 250030
  • Latitude
  • Longitude

  • Summit

  • Volcano

There are no activity reports for Unnamed.

 Available Weekly Reports

There are no Weekly Reports available for Unnamed.

Summary of eruption dates and Volcanic Explosivity Indices (VEI).

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1972 Jan 8 1972 Jan 12 Confirmed 0 Hydrophonic

The following references are the sources used for data regarding this volcano. References are linked directly to our volcano data file. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title. Additional discussion of data sources can be found under Volcano Data Criteria.

Johnson R W, Everingham I B, Cooke R J S, 1981. Submarine volcanic eruptions in Papua New Guinea: 1878 activity of Vulcan (Rabaul) and other examples. Geol Surv Papua New Guinea Mem, 10: 167-180.

SOFAR signals resembling those produced at known submarine eruptions were recorded in January 1972 at a location in the central Bismarck Sea (Johnson et al, 1981). The source of the signals was at the junction of two segments of the northern margin of the South Bismarck plate. The more easterly of these segments is a transform fault, whereas the more westerly is an area of oblique active seafloor spreading. The signals were detected at a seismic station on nearby Manus Island, as well as at hydrophone stations on Wake and Midway Islands in the central Pacific.