Comparing Kīlauea's summit before and after the 2018 collapse

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This series of maps compares aerial imagery collected prior to Kīlauea's 2018 summit collapse and the "Geologic Map of the Summit Region of Kīlauea Volcano, Hawaii" (Dutton and others, 2007; Neal and others, 2003)—created before Kīlauea's 2018 summit collapse—with aerial imagery collected after the 2018 summit collapse and a preliminary update to Kīlauea's summit geologic map.

 

The September 23, 2020, overflight provided aerial photos of Kīlauea's summit that were used to construct an updated map. Poor w

The September 23, 2020, overflight provided aerial photos of Kīlauea's summit that were used to construct an updated map. Poor weather prevented full coverage of the caldera floor, and this map is focused on Halema‘uma‘u. The water lake was 300 m (980 ft) long and had a surface area of 3.3 hectares (8.2 acres). For comparison, on May 29, 2020, the lake was approximately 2.5 hectares (6.2 acres). The label "downdropped block" shows one of the large portions of the caldera floor that subsided, along with the Halema‘uma‘u region, during the 2018 eruption.

(Public domain.)

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