Lava from Kīlauea's PKK flow continued to enter the sea during 10-16 November at a newly formed lava delta at the eastern Laeʻapuki entry area. On 16 November the delta grew along a wide front, mostly near and W of the most seaward point. A new arm of the delta-feeding flow had formed ~100 m farther E. Two vigorously active tips of this new arm were within 180 m of the sea cliff just E of the new delta, and at their current rate of advance they could enter the sea within a day. All vents in the crater of Puʻu ʻŌʻō were incandescent during this period. Seismicity was weak at Kīlauea's summit, with essentially no tremor recorded. Tremor was at moderate levels at Puʻu ʻŌʻō. No significant deformation occurred.

Source: US Geological Survey Hawaiian Volcano Observatory (HVO)

Geological Summary. Kīlauea overlaps the E flank of the massive Mauna Loa shield volcano in the Island of Hawaiʻi. Eruptions are prominent in Polynesian legends; written documentation since 1820 records frequent summit and flank lava flow eruptions interspersed with periods of long-term lava lake activity at Halemaʻumaʻu crater in the summit caldera until 1924. The 3 x 5 km caldera was formed in several stages about 1,500 years ago and during the 18th century; eruptions have also originated from the lengthy East and Southwest rift zones, which extend to the ocean in both directions. About 90% of the surface of the basaltic shield volcano is formed of lava flows less than about 1,100 years old; 70% of the surface is younger than 600 years. The long-term eruption from the East Rift Zone between 1983 and 2018 produced lava flows covering more than 100 km², destroyed hundreds of houses, and added new coastline.