Pit crater
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A pit crater is a depression formed by the sinking or collapse of the surface lying above a void or empty chamber, rather than by the eruption of a volcano or lava vent. Pit craters are found on Mercu
Kilauea with Halemaʻumaʻu
Deep pit crater on Hualalai Hawaii
Western rim of Devil's Throat pit crater in June 2016
Halemaʻumaʻu
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Halemaʻumaʻu anglicized as “Halemaumau” is a pit crater within the much larger Kīlauea Caldera at the summit of Kīlauea volcano on island of Hawaiʻi. The roughly circular crater was 770 m × 900 m befo
Pit crater
…1868, an eyewitness saw more than two-thirds of the basin of Kilauea cave in and fill with a lava lake. This process happened repeatedly. The modern Halema'uma'u Shield began growing and then collapsed into a deep, funnel-shaped pit. This pit filled with lava and for 19 years burned continuously, becoming famous as the…
Halema'uma'u after the 2018 collapse events. The floor of the larger Kīlauea Caldera can be seen at left.
Aerial photo of Halemaʻumaʻu in 2009, showing a white plume being emitted by an active lava lake.
In March 2013, the glow from the lava lake at the bottom was clearly visible after dark.
Halemaʻumaʻu Crater Lake in October 2019. The yellow water is the result of dissolved minerals and sulfur.