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  • Country
  • Subregion Name
  • Primary Volcano Type
  • Last Known Eruption
  • 4.12°S
  • 152.2°E

  • 200 m
    656 ft

  • 252150
  • Latitude
  • Longitude

  • Summit

  • Volcano

There are no activity reports for Tavui.

 Available Weekly Reports

There are no Weekly Reports available for Tavui.

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
5150 BCE ± 1000 years Unknown Confirmed 5 Thermoluminescence Raluan Ignimbrite

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.

Finlayson D M, Gudmundsson O, Itikarai I, Nishimura Y, Shimamura H, 2003. Rabaul volcano, Papua New Guinea: seismic tomographic imaging of an active caldera. J Volc Geotherm Res, 124: 153-171.

Nairn I A, McKee C O, Talai B, Wood C P, 1995. Geology and eruptive history of the Rabaul Caldera area, Papua New Guinea. J Volc Geotherm Res, 69: 255-284.

Wood C P, Nairn I A, McKee C O, Talai B, 1995. Petrology of the Rabaul Caldera area, Papua New Guinea. J Volc Geotherm Res, 69: 285-302.

The spectacular mostly submarine Tavui caldera lies off the NE tip of the Gazelle Peninsula north of Rabaul caldera. The caldera was first discovered during a bathymetric cruise in 1985. The SW wall of the roughly 10 x 12 km wide Tavui caldera cuts the NE tip of the peninsula and extends from Tavui Point at the northern tip of the peninsula SE to Laweo Point. The 7100-year-old Raluan Ignimbrite, initially thought to have originated from Rabaul caldera, is now thought to have been produced by an eruption of Tavui caldera. A basaltic scoria layer immediately underlies the rhyolitic ignimbrite, and the introduction of basaltic magma was considered to have triggered the rhyolitic eruption. The lack of a major low-velocity region detectable beneath the caldera during a seismic tomography survey suggests that it is not currently active.