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Ulawun is a basaltic and andesitic stratovolcano in West New Britain Province, on the island of New Britain in Papua New Guinea.

Ulawun
Ulawun.jpg
Ulawun issuing passive steaming
Highest point
Elevation2,334 m (7,657 ft)
Prominence2,334 m (7,657 ft)
ListingUltra
Coordinates5°03′00″S 151°20′00″E / 5.05000°S 151.33333°E / -5.05000; 151.33333Coordinates: 5°03′00″S 151°20′00″E / 5.05000°S 151.33333°E / -5.05000; 151.33333
Geography
Ulawun is located in Papua New Guinea
Ulawun
Ulawun
Papua New Guinea
LocationWest New Britain, Papua New Guinea
Geology
Mountain typeStratovolcano
Volcanic arc/beltBismarck volcanic arc
Last eruption2018 Sep 21

About 130 km (81 mi) southwest of the township of Rabaul, Ulawun is the highest mountain in the Bismarck Archipelago at 2,334 metres (7,657 ft) and one of the most active volcanoes in Papua New Guinea. A total of 22 recorded eruptions have occurred since the 18th century; the first, in 1700, was recorded by William Dampier. Several thousand people live near the volcano. Because of its eruptive history and proximity to populated areas, Ulawun has been deemed one of the Decade Volcanoes.

Contents

Recent activityEdit

 
A steam plume from Ulawun drifting over the sea is clearly visible in this satellite image

The last few years have seen almost constant activity at Ulawun, with frequent small explosions, and have caused great damage and loss of life.

Volcanoes in Papua New Guinea are some of the world's most prolific sources of sulphur dioxide. Recent studies have shown that Ulawun alone releases about 7 kg/s of SO2, which is about 2% of the global total of SO2 emissions into the atmosphere.

ViewEdit

 
Ulawun Volcano and Lolobau Island

It is a mud form and is rock which leads magma upwards due to magma and the eruptions.

Decade MapEdit

Ulawun has been named one of the Decade Volcanoes, 16 volcanoes identified as being worthy of particular study in light of their history of large, destructive eruptions and their proximity to populated areas.

See alsoEdit

ReferencesEdit

  • McGonigle A.J.S., Oppenheimer C., Tsanev V.I. et al. (2004), Sulphur dioxide fluxes from Papua New Guinea's volcanoes, Geophysical Research Letters, v. 31, issue 8
  • Johnson, RW, Davies, RA and White, AJR (1972) Ulawun Volcano, New Britain. Canberra, Department of National Development, Bureau of Mineral Resources, Geology and Geophysics Bulletin 142, PNG 5.

External linksEdit

  • Information from the Papua New Guinea Geological Survey
  • "Ulawun". Global Volcanism Program. Smithsonian Institution. Retrieved 2010-03-15.
  • "Mount Ulawun, Papua New Guinea" on Peakbagger