Overview

• Episode 35 began at about 8:05 p.m. HST on October 17 and ended around 3:32 a.m. on October 18 after roughly 7.5 hours of sustained fountaining.
• Simultaneous fountains from the south and north vents reached new highs for this sequence, peaking near 460 meters (about 1,500 feet) and roughly 1,100 feet, respectively.
• The eruption plume rose to roughly 5,000–6,000 meters (16,000–20,000 feet), and lava remained confined to Halemaʻumaʻu, covering about two thirds of the crater floor.
• Tephra including fine ash and Pele’s hair was reported downwind, prompting advisories from Hawaii County Civil Defense about health and water-catchment impacts.
• USGS kept the alert level at WATCH and the Aviation Color Code at ORANGE, reported renewed summit inflation and tremor, and said Episode 35 volume estimates are still being compiled as the national park maintains restricted summit access.