On December 18, HVO geologists landed on Kīlauea's down-dropped block, whic

On December 18, HVO geologists landed on Kīlauea's down-dropped block, which formed during the collapse-events of 2018. At this location, east of Halema‘uma‘u, there was an unobstructed view of Kīlauea's growing summit crater lake. The length of the lake was approximately 189 m (650 ft) in the east-west direction, which is about the length of four Olympic-sized swimming pools. The light bluish-yellow colors of the lake are likely areas of groundwater influx. HVO fieldwork in this closed area of Hawai‘i Volcanoes National Park is done with permission of the National Park Service to support public safety and further scientific understanding of Kīlauea Volcano. USGS photo by K. Mulliken.