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  • Country
  • Subregion Name
  • Primary Volcano Type
  • Last Known Eruption
  • 4.92°S
  • 151.158°E

  • 858 m
    2814 ft

  • 252130
  • Latitude
  • Longitude

  • Summit

  • Volcano

There are no activity reports for Lolobau.

 Available Weekly Reports

There are no Weekly Reports available for Lolobau.

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1911 1912 Confirmed 4 Historical Observations East flank (Sili)
[ 1908 ] [ Unknown ] Uncertain    
1904 Aug 9 1905 Oct 18 (in or after) Confirmed 4 Historical Observations East flank (Sili, Malo), Hulu ?
1100 ± 30 years Unknown Confirmed 4 Radiocarbon (uncorrected) Hulu

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.

Cooke R J S, Johnson R W, 1978. Volcanoes and volcanology in Papua New Guinea. Geol Surv Papua New Guinea Rpt, 78/2: 1-46.

Fisher N H, 1957. Melanesia. Catalog of Active Volcanoes of the World and Solfatara Fields, Rome: IAVCEI, 5: 1-105.

Newhall C G, Dzurisin D, 1988. Historical unrest at large calderas of the world. U S Geol Surv Bull, 1855: 1108 p, 2 vol.

Patia H, McKee C O, 1993. Lolobau volcano, Papua New Guinea - cyclic basaltic to rhyodacitic eruptions and phreatomagmatic activity. IAVCEI 1993 Canberra Conf Abs, (revised abs).

Lolobau volcano sits astride the western rim of a 6-km-wide caldera, which formed about 12,000 years ago. The 8 x 13 km, oval-shaped Lolobau Island is located just off the coast of eastern New Britain. A small lake occupies the SW part of the caldera. A small lava dome (Hulu) caps Mount Lolobau, which has a 0.8 x 1.1 km summit crater that is breached to the NE. Flank cones are found along the coast of the largely submerged volcano. Several vents within the caldera along an E-W-trending line on the eastern flank of Mount Lolobau have been active during historical time. The latest eruptions took place during the early-20th century.