1986 November		Lava spills over the lip of the Kupaianaha lava pond.
1986 December		Lava flow advances across an intersection in the Kalapana.
1987 October		Low profile of the Kupaianaha shield.
1988 February		Steam explosions often occur when lava enters the sea.
1988 May		Acidic steam plumes result from the interaction of seawater and hot lava.
1988 November and 1990 August		Top: Slow-moving pahoehoe lava develops crust several centimeters thick. Bottom: `A`a lava flow advances over older pahoehoe flow.
1989 June		Glowing skylight shows lava traveling through a tube from Kupaianaha to the sea (steam plume in distance).
1989 June		Remnants of the Waha`ula Visitor Center, Hawai`i Volcanoes National Park.
1990 February		Lava flows originating from a skylight pour down Pulama pali in narrow channels.
1990 April		House burns in Kalapana as thin pahoehoe flows neared and then reached it.
1986 October and 1990 August		A deep crater formed atop Pu`u `O`o as the summit of the cone collapsed.

More information about the eruption

• Eruption narrative
• Map of Pu`u `O`o and area covered by lava
• Table of eruption statistics
• Current Eruption Update (updated frequently)

More Photographs of Eruption Summary

• 1983-1986, The rise of Pu`u `O`o: episodic lava fountains build massive cone
• 1992-1994, Eruption returns to Pu`u `O`o: flank vents build shield against uprift side of cone
• 1995-1998, The fall of Pu`u `O`o: collapse claims west flank of cone
• 1999-2000, Intrusion triggers pause in eruption: tube system blocked