At KÄ«lauea Volcano’s summit, inward slumping of the rim and walls of Halema‘uma‘u continues in response to ongoing subsidence. In this view to the southwest taken after this morning’s event, a section of dark-colored wall rock (center left) has detached and dropped downward into the crater. Photo taken Saturday, June 16, 2018 courtesy of U.S. Geological Survey
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