Hawaii Volcano Blog

Kīlauea Summit Lava Lake Level Drops with Deflation

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The United States Geological Survey reported that just before 10 a.m. on Monday, April 30, 2018, a break in the weather allowed HVO’s webcam to capture this image of the lava lake within Halema‘uma‘u at the summit of Kīlauea.

Halema‘uma‘u at the summit of Kīlauea, Monday, April 30, 2018. PC: USGS 

Following multiple overflows of the lava lake last week, the lake level dropped over the weekend in concert with the switch to summit deflation. Earlier the lava lake level was estimated to be about (49 feet below the vent rim, but shortly thereafter, the summit switched to inflation, so the lake level could rise in the coming hours/days.


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