June 29, 2025 — Episode 27 of the Halema‘uma‘u Kīlauea summit eruption

Episode 27 of the Halema‘uma‘u Kīlauea summit eruption began around 9:05 a.m. HST on June 29, 2025. The north vent was active for majority of the eruption and reached approximately 1115 ft (~340 m) high by 11:00 am HST. The south vent became active with low level fountaining of about 65 ft (20 m) just before 4:00 p.m. HST. The fountains lasted just under 11 hours. Tephra (erupted volcanic material) was deposited over the crater rim wall shown in dark grey here. USGS photo by H. Winslow.