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A small delta at the Kamokuna ocean entry (left) continues to slowly build. Our observations this afternoon (April 10) indicate that the coastal plain breakouts that had been active since mid-February have died within the last few days. Currently, the only active surface flows are from the March 5 breakout on the upper flow field. This activity has not significantly advanced, and remains within roughly 3.5 km (2.2 mi) of the episode 61g vent. The National Park Service viewing area and rope line are visible in the center of the photo.
The lava entering the ocean continues to produce a robust plume, making it difficult to get a clear view of the small lava delta that is forming. Occasional views of the eastern edge of the delta (right) revealed a thin delta building on a steeply sloping beach of sand and volcanic fragments—produced by the explosive interactions between hot lava and cool sea water. Lava blocks are visible floating in the hot, discolored water plume on either side of the delta, with their steam trails on the water's surface.
This video clip shows the Kamokuna ocean entry, with the laze plume blocking the view of the delta. The billowing white cloud rising from the ocean entry is a corrosive seawater plume laden with hydrochloric acid and fine volcanic particles that can irritate the skin, eyes, and lungs.
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