Halema'uma'u vent

Several collapses early this morning exposed more of the lava pond deep within the Halema`uma`u vent cavity. For the last several days, glowing and spattering holes (top image) have been active on the floor of the vent cavity, at a depth of about 200 m below the vent rim. At 3:06 am, a partial collapse of the floor created a single large opening within which lava was vigorously spattering (middle image). The opening enlarged further with another collapse around 6 am, which improved the view of the circulating lava pond (bottom image).