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Mt. Ulawun

dangerous, 8th most dangerous volcano in the world

susan irwin

on 4 February 2013

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Transcript of Mt. Ulawun

Eruption Style Ulawun's eruption style is explosive, effusive lava, with dome growth.
The large 1980 eruption caused pyroclastic flows.
Typical smaller eruptions range from strombolian type explosion to lava dome growth with small ash explosions.
Ulawun releases about 7kg/s of SO2, which is about 2% of the global total of SO2 emissions into the atmosphere. Ulawun Location, Size, and Formation Elevation: 2,334 meters
Distance Across: 16.53 kilometers
Height: 10.24 kilometers
Distance from ocean: 5 kilometers
The coordinates of Mt. Ulawun are -5.05 degrees South/151.33 degrees East.
Ulawun was formed by the Australian and Pacific Plates. They are Convergent Boundaries. When the Australian and Pacific plates collide, magma forms from melted chipped off pieces and forces its way to the surface making Ulawun grow. Mt. Ulawun, Papua New Guinea Ulawun Type Ulawun History by Alex Sydorak
February 1, 2013
Period 8 Mt. Ulawun, Papua New Guinea Ulawun is a large symmetrical stratovolcano.
It is one of the most active and dangerous volcanoes on the island of New Britain, Papua New Guinea.
Ulawun is a part of the Bismarck volcanic arc.
Ulawun is composed of lava flows interbedded with tephra layers. Mt. Ulawun is known as the "Father" of all volcanoes. The first eruption of Ulawun was recorded in 1700. The largest eruptions of Mt. Ulawun were in 1915, 1970, and 1980. The 1980 eruption produced pyroclastic flows and ash that covered the surface and sent ash to 60,000 feet. The eruption also produced a catostrophic structural collapse. The last few years have had almost constant activity at Ulawun, with small explosions happening frequently. There have been at least 22 recorded eruptions since the 18th century. Ulawun Hazards Ulawun is 400 meters higher than most of the volcanoes in the Bismarck chain. This could mean that it isn't stable. So, massive slope failure is a huge hazard at Ulawun volcano.
Lava dome growth and large explosive eruptions have produced huge pyroclastic flows, which have reached many kilometers from the summit causing heavy damage. Bibliography "Ulawun Volcano." [online] Available: http://mobile.volcanodiscovery.com/ulawun.html.
"Ulawun - Wikipedia The Free Encyclopedia." [online] Available: en.wikipedia.org/wiki/Ulawun
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