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Looking southwest at main ocean-entry point about halfway along front of Highcastle lava delta. Note, however, that other smaller entries are also taking place. Digital Zoom
Looking southwest at main ocean-entry point about halfway along front of Highcastle lava delta. Note, however, that other smaller entries are also taking place.
Seconds after small gushing breakout has started about 50 meters upstream of top of old Highcastle sea cliff. Plate of crust surrounded by lava capped roof of small tube but finally gave way. Width of plate of crust, about 1 meter.
Twenty-more seconds later, side view of left prong of breakout shown above. Note developing wrinkles on crust as flow slows on gentler slope. Width of stream, about 80 centimeters.
Head-on view of left prong of breakout, 106 seconds after first image of breakout above. Note that plate of crust remains intact, though it has slumped a little from its original position.
Another breakout but in same general area. This one has developed channeled flow and shows continued growth of crust downstream from point of emergence from under crust. Width of flow, about 1.3 meters.