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The lava pond in the west pit of Pu‘u ‘Ō‘ō remains active. While at Pu‘u ‘Ō‘ō making observations, HVO geologists witnessed a small rockfall from the western wall (center right of photo where spattering is occurring). The rockfall briefly disturbed the pond surface and produced spattering for several minutes. Rockfalls into the lava pond are fairly common because the unstable west pit rim and walls have many loose altered rocks, overhung ledges, and cracks (example at left center).
The ocean entry at the Kamokuna lava delta was active today, with a small and wispy plume. The ocean entry was being fed by a surface flow on the delta, which is clearly seen in the thermal image (right) as a bright yellow color. The thermal image is also beginning to show heat signatures from a few coast parallel cracks in the delta. The cracks have been buried over the past several months as the delta was resurfaced by new lava, but as the delta surface cools, the heat from the cracks is visible once again. Today (November 1) the delta size was roughly 10 acres (4 hectares), and the closest surface flows on the coastal plain remain about 1.4 km (0.9 miles) from the emergency road.
