Episode 49 and the End of the Kupaianaha Eruption: 1991-1992

A line of fissures formed between Puu Oo and Kupaianaha in November 1991. During a three-week period, these fissures produced an aa flow that reached the Royal Gardens subdivision but caused no damage (Heliker and others, 1993; Mangan and others, 1995). This photo shows one the vents for episode 49. Photograph by J.D. Griggs, U.S. Geological Survey, November 13, 1991.

The activity at Kupaianaha declined throughout 1991. This episode was officially over on February 6, 1992, when no lava could be detected in the Kupaianaha system (Kauahikaua and others, 1992; Mattox and others, 1992). Photograph by Steve Mattox, July 3, 1990.

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