Kīlauea & Maunaloa Update, July 1, 2021

Similar to the previous week, Kīlauea's earthquakes last week focused mostly beneath its summit and south flank, while Maunaloa's recent and ongoing south flank seismicity is complemented by a small cluster northwest of its summit. Rarely, small points of brightness still appear on Kīlauea's summit webcams overnight, corresponding to the remaining hotter spots evident on the USGS Hawaiian Volcano Observatory's thermal camera, but not to any apparent activity on the hardened lake surface. Unusually for our dynamic island, neither volcano shows any sign of expansion or contraction at their summits, though background cycles of deflation and inflation continue atop Kīlauea, smaller and more frequently over this past week. We review all the monitoring signals and reports courtesy of the USGS-HVO, adding context and analysis, and finish with a discussion of live viewer questions. This program is brought to you in part by a grant from the Hawaiʻi Island Strong Fund of the Hawaiʻi Community Foundation in partnership with the County of Hawaiʻi, and from smaller donations from viewers like you. https://youtu.be/PNufj5BJfzY