Photo and Video Chronology - Kīlauea - October 14, 2012

Release Date:

Lava lake in Halema‘uma‘u overlook vent at high level.

Lava lake in Halema‘uma‘u overlook vent at high level

Lava lake in Halema‘uma‘u overlook vent at high level...

The lava lake at Kīlauea's summit was about 46 m (150 ft) below the floor of Halema‘uma‘u crater today—the highest it has reached.

(Public domain.)

A portrait view of the lava lake with the opposite wall of Halema‘u...

A portrait view of the lava lake with the opposite wall of Halema‘uma‘u beyond and the caldera wall of Kīlauea in the background. Jaggar Museum and the Hawaiian Volcano Observatory (HVO) adorn the summit of Kīlauea at upper right.

(Public domain.)

 

Video of rocks exploding off of Halema‘uma‘u overlook vent wall

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. This video, zoomed in on the back (NW) wall of the vent, shows small fragments of rock exploding from the wall and scattering onto the lake surface. Watch closely...the rocks are originating from an alcove that overhangs the lake and can be difficult to see.

(Public domain.)