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Kīlauea & Maunaloa Update, July 22, 2021

3:34 AM · Jul 23, 2021

Kīlauea's earthquakes and inflation continue, while Maunaloa shows little sign of movement this past week, according to reports and publicly available monitoring data courtesy of the USGS Hawaiian Volcano Observatory. Kīlauea's recent pattern of deep earthquakes under the bulk of the volcano is also ongoing, with the latest notable entry a magnitude 3.4 at a depth of 16 miles or 25 kilometers on July 21, south of the caldera. Fittingly, this week's USGS Volcano Watch article focuses on flexure earthquakes caused by the weight of the island's volcanoes. We review the signals on both volcanoes, highlight the patterns, discuss live viewer questions, and probe the topic of historically changing earthquake patterns on the Upper East Rift as our bonus segment. 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/r9KtmbjHIGc

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