Thats a lotta lava. Nice video at source.
A volcano wall collapse was recently captured on Kīlauea volcano, one of the most active volcanoes in the world. The collapse occurred on February 10th, at 8:21 a.m. local time when a chunk of the volcano collapsed, part of an ongoing collapse of the pit crater.
The source of this constant lava flow is a massive lava tube running from the volcano to the Pacific Ocean, which lasted 15 months, an incredibly long period of time for a lava tube.
The USGS estimated that 1-2 cubic meters of lava flowed into the ocean per second, totaling up to 1.5 billion gallons of lava during the lava tube’s year-plus long lifespan.