New video from the U.S. Geological Survey shows the lava lake at the Kilauea summit at it's highest level ever.
This video, taken in the day on Oct. 15, shows the black, slightly cooled lava, at the rim of the Halema'uma'u Crater. Heat from the high lava lake level in the 'overlook' vent in Halema?uma?u is causing the walls of the vent above the lava surface to expand and fracture. This is the source of the cracking and booming noises emanating from the vent in recent days.
Video, taken on Oct. 5 ago shows the spattering at the west edge of the lava lake in the 'overlook' vent in Halema?uma?u Crater.
Another video from the same day shows a zoomed in view of the spattering.
Hawaii volcano observatory geologists say the intensity of the heat, and the lava is literally crumbling the walls.