January 15, 2025—Kīlauea summit eruption reference map

This reference map depicts the ongoing Kīlauea summit eruption within Halema‘uma‘u crater as of January 15, 2025. Most of the included map data were collected during a Hawaiian Volcano Observatory helicopter overflight on January 10, so the provided eruption statistics are current as of the end of the third eruptive episode on January 3. Just this morning, January 15, however, a fourth eruptive episode has begun with lava fountaining and flowing on the western side of the crater floor, so the active lava footprint has been mapped using webcam imagery. 

Also included here are west-to-east profiles across the summit caldera, depicting topographic changes since 2018. Profiles are provided for the periods before the 2018 caldera collapse, shortly after the 2018 collapse, following each of the five summit eruptions from 2020–2023, and for this eruption following the end of its third episode. Also shown is the maximum depth of the 2019–2020 Halema‘uma‘u water lake.