Mar. 5th through 7th draining of the Halema‘uma‘u lava lake

Preview image for video: shows a sequence taken from a thermal camera looking into the Halema‘uma‘u vent cavity between March 5 and 7. Tremor and deflation began at about 1:42pm on March 5, and this was shortly followed by draining of the Halema‘uma‘u lava lake. Before the draining, the lava lake was about 75 meters below the rim of the vent cavity, and about a day later the lava was about 220 meters deep, having retreated to the bottom of the vent cavity.