Kamokuna Delta Continues to Build, Shows Instability

The new lava delta at the 61g Kamokuna ocean entry that’s been building for the past month continues to grow, according to field observations by Hawaiian Volcano Observatory personnel.

HVO scientists said in their most recent report that the delta has “grown substantially” since April 15.

“Two large cracks parallel to the coast are visible on the delta, with the distal portion slumping slightly seaward—suggesting further instability,” HVO reported. “Today [Thursday], the ocean entry activity, most of which was located along the western side of the delta and obscured by the thick plume, was producing occasional weak littoral explosions.”

There was a small delta collapse on Thursday. The front of the delta was also observed to have slumped slightly, which shows that the area is unstable. Visitors who are viewing lava should heed signs and remain within the designated viewing area.

The last time a large delta collapse occurred at the Kamokuna entry point was on News Year’s Eve.

Activity at Kilauea’s lava lake reached a level 41 feet below the vent rim early Thursday morning. This is the highest level the lake has reached during the month of April. The levels switched to deflation shortly after and began to drop. As of Friday morning the lava lake was as much as 82 feet below the vent rim.

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