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VW4_2017 02-13_MPatrick_IMG_2194_copy_USGS

The lava lake within Halemaʻumaʻu at the summit of Kīlauea illuminated the vent walls on the evening of February 13, 2017. Circulation within the lava lake causes upwelling and down-welling on opposite sides of the lake. This often results in spattering on the lake surface (right), which creates bright spots on the dark, semi-solid lake crust. Circulation can also pull sections of the crust apart, exposing the molten lava beneath and creating incandescent lines on the lake surface. USGS photo, M. Patrick

The lava lake within Halemaʻumaʻu at the summit of Kīlauea illuminated the vent walls on the evening of February 13, 2017. Circulation within the lava lake causes upwelling and down-welling on opposite sides of the lake. This often results in spattering on the lake surface (right), which creates bright spots on the dark, semi-solid lake crust. Circulation can also pull sections of the crust apart, exposing the molten lava beneath and creating incandescent lines on the lake surface. USGS photo, M. Patrick

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