A UAS mission on June 13, 2018, filmed details of the dramatic changes occurring within Halema‘uma‘u crater at Kīlauea's summit since explosive eruptions of ash and gas and ongoing wall collapse began in midMay. The video shows steep crater walls that continue to slump inward and downward in response to the ongoing subsidence of the summit area. This video was taken from a UAS (Unmanned Aircraft Systems). Limited UAS flights into this hazardous area are conducted with permission and in coordination with Hawai'i Volcanoes National Park. The video is used to assess hazards at the summit and the information is shared with the National Park Service and emergency managers.


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