What do we call new land at Kīlauea's ocean entries?

This cross-section shows the structure of a lava delta and highlights the hazards of these unstable features. Despite layers of cooled, solid lava (brown) on the delta surface, the unstable foundation (white) often shifts along zones of weakness (dashed black line) within the delta. These weak zones are often expressed as large cracks parallel to the coastline on the delta surface. Even if the cracks are superficially covered by new flows, they continue to weaken the foundation, making the lava delta prone to collapse. USGS graphic by J. Johnson.