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  • Country
  • Subregion Name
  • Primary Volcano Type
  • Last Known Eruption
  • 7.33°S
  • 146.708°E

  • 1500 m
    4920 ft

  • 253003
  • Latitude
  • Longitude

  • Summit

  • Volcano

There are no activity reports for Koranga.

 Available Weekly Reports

There are no Weekly Reports available for Koranga.

There are no Holocene eruptions known for Koranga. If this volcano has had large eruptions prior to 10,000 years ago, information might be found in the LaMEVE (Large Magnitude Explosive Volcanic Eruptions) database, a part of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).

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.

Fisher N H, Branch C D, 1981. Late Cainozoic volcanic deposits of the Morobe goldfield. Geol Surv Papua New Guinea Mem, 10: 249-256.

Pigram C J, Johnson R W, Taylor G A M, 1977. Investigation of hot gas emissions from Koranga volcano, Papua New Guinea, in 1967. Aust Bur Min Resour Geol Geophys Jour, 2: 59-62.

Sillitoe R H, Baker E M, Brook W A, 1984. Gold deposits and hydrothermal eruption breccias associated with a maar volcano at Wau, Papua New Guinea. Econ Geol, 79: 638-655.

Koranga Crater, a Pliocene-to-Holocene hydrothermal explosion vent complex (Pigram et al., 1977), is located in the Morobe goldfields in the Owen Stanley Range SW of Huon Gulf. The gold mineralization here prompted one of the world's last great gold rushes, beginning in 1922. Gold mineralization is thought to have been related to Pliocene maar formation and dacitic and andesitic lava dome extrusion. Gas emission and a landslide from Koranga in May 1967 were considered to have had either a non-volcanic (Pigram et al., 1977; Fisher and Branch, 1981) or hydrothermal-eruption origin (Sillitoe et al., 1984).