October 1, 2020—Kīlauea summit eruption thermal maps
A helicopter overflight on October 1, 2021, at approximately 10 a.m. HST allowed for aerial visual and thermal imagery to be collected of Halema‘uma‘u crater at the summit of Kīlauea. The scale of the thermal map ranges from blue to red, with blue colors indicative of cooler temperatures and red colors indicative of warmer temperatures. The dimensions of the new lava lake are 1 km (1094 yd) E-W axis and 720 m (790 yd) in N-S axis. The estimated area of the lake is about 54 hectares (134 acres). USGS map by M. Patrick.