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Ulawun volcano is one of the worlds most dangerous volcanoes. It has structural instability and is close to population centres.

Year	Comments
1700	The first recorded eruption by Dampier.
1915	Large eruption deposited 10 cm of ash at Toriu, 50 km northeast of the volcano.
1970	Large eruption produced nuees ardentes and lava flows. The eruption devastated the NW flank of Ulawun and modified the summit crater.
1973	Lava flows and emissions from five vents.
1978	Large eruption, lava flow, ash, nuée ardente. Flank eruption which may indicate structural instability.
1980	Eruption ejected ash to 60,000 ft and produced pyroclastic flows which swept all flanks of the volcano and devastated an area of 20 sq km.
1983	Mild explosive activity.
1984	Explosions, ash clouds, strombolian eruption, Incandescent tephra.
1985	Strombolian eruptions, lava flows, tephra ejection.
1989	Ash emissions to 2 km altitude.
1993	Eruption column to 1,000 m above summit.
1994	Weak red glow from the summit.
1999	Explosions.
2000	Eruption on 29 September resulting in evacuation of nearby towns. eruption during 28 September-2 October 2000 sends a plume to 10-12 km.
2001	Eruption on 30 April 2001 sends an ash cloud to a height of ~13.7 km.
2002	Ash eruptions.
2003	Intermittent ash eruptions.
2005	Increasing activity. Faint plume visible in March.
2006	Ash to 10,000 ft in March.
2007	Ash emissions in January