April 5, 2009 – Hawaii Volcanoes National Park, Hawaii
VIDEO: USGS

Big Island volcano scientists have released footage showing the recent eruption activity at the Kilauea summit, available to the public on the USGS – HVO website.

According to activity updates written by scientists at the U.S. Geological Survey’s Hawaiian Volcano Observatory, the vent within Halemaumau Crater is continuing to emit elevated amounts of sulfur dioxide gas, resulting in high concentrations of sulfur dioxide downwind.

The USGS says that the active lava pond in the vent remains more than 100 yards below the vent rim. The lava pond can only be seen with a thermal camera, due to the eruption’s plume.

The video above is courtesy the Hawaiian Volcano Observatory. It has been sped up to 30 times the normal play speed. You can see the cycles of filling and draining of the lava lake that have been observed throughout much of the past week, following a collapse in the vent on March 25.

The HVO says filling-draining frequencies have ranged from about 10 to 20 cycles per hour. A brief period of steady behavior, with no significant lava level fluctuations, was observed around midday on March 28.

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