This eruption was observed by Hawaiian Volcano Observatory volcanologist Jack Lockwood on 28 February 1974, near the end of the 5-year-long Mauna Ulu eruption. As the erupting lava solidifies around the vent the feature gets progressively larger.

Photo by Robin Holcomb, 1974 (U.S. Geological Survey).

This image is made available as a Public Domain Work, but proper attribution is appreciated.

Galleries: Fieldwork | Volcano Monitoring | Lava Flows

Keywords: lava | lava flow | eruption | field work | volcano monitoring | spatter cone | effusive | volcanologist

Kilauea