USGS
Hawaiian Volcano Observatory

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Spatter cones built by vents of episode 51 on southwest flank of Pu`u `O`o, Kilauea Volcano, Hawai`i
Photograph by C. Heliker on April 3, 1992
Lava pours from the base of spatter cones built atop the episode-51 fissure on the southwest flank of Pu`u `O`o (note slope in lower left). Episode 51 began earlier, on March 7, when a 35-m-long fissure opened above the episode 50 fissure. The new fissure quickly built a spatter rampart on the cone and added many new flows to the shield on the west flank of Pu`u `O`o. During March and April, several brief pauses in the supply of lava to the new fissure prevented flows from advancing more than about 1.5 km from the vent. 


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Updated: 18 May 2000