Kīlauea Episode 55: Everything You Need to Know

The Halema'uma'u eruption of Kīlauea is currently paused after episode 55 fountaining ended on October 17. Summit reinflation continues today.

The Halema'uma'u eruption of Kīlauea is currently paused after episode 55 fountaining ended yesterday at 9:03 a.m. HST. Summit reinflation continues today following the end of the fountaining.

Episode 55 of the ongoing Halemaʻumaʻu eruption ended abruptly at 9:03 a.m. HST on October 17, 2026. VAN is being reissued to drop the alert level from WATCH to ADVISORY and the color code from ORANGE to YELLOW. Volcanic Activity: VAN is being reissued to drop the alert level from WATCH to ADVISORY and the color code from ORANGE to YELLOW. Episode 55 of the ongoing Halemaʻumaʻu eruption ended abruptly at 9:03 a.m. HST on October 17, 2026 after about 6 hours of continuous lava fountaining. Additional details on this eruptive episode will be provided in the next official report.All eruptive vent

A shallow intrusion occurred beneath Halemaʻumaʻu at the summit Kīlauea volcano Sep 30–Oct 1. At present there is minor spattering at both north and south vents. It is not possible to forecast the onset of episode 55 fountains or if they will occur. Volcanic Activity: HVO is issuing a weekly Volcano Observatory Notice for Aviation (VONA) and associated Volcano Activity Notices (VAN) which are now required to be reissued weekly for volcanoes at ORANGE. (VONA repeat interval is daily for volcanoes at RED and every two weeks for volcanoes at YELLOW).A shallow intrusion occurred beneath Halemaʻuma

Kīlauea has been intermittently erupting bursts of spatter building a small cone around the north vent in Halemaʻumaʻu; no precursory flows since September 12. Summit inflation stalled last night further delaying the onset of episode 55 fountaining.

Kīlauea volcano is intermittently erupting short, precursory lava flows with 104 recorded since this activity began on September 7. The onset of episode 55 fountaining is likely today or tomorrow, if conditions remain favorable.

Kīlauea volcano is intermittently erupting short, precursory lava flows with over 100 recorded since the activity that began September 7. The onset of episode 55 fountaining is likely today or tomorrow, if inflation patterns remain consistent.

Kīlauea volcano is intermittently erupting short, precursory lava flows continuing the activity that began September 7. Summit inflation returned last night. Episode 55 fountaining is likely today, September 11, if inflation patterns remain consistent.

Kīlauea volcano is intermittently erupting short, precursory lava flows continuing the activity that began September 7. The forecast window for onset of episode 55 fountaining is now September 10-11 given no change in summit inflation since yesterday.

Kīlauea volcano is erupting. Precursory overflows, which began on September 7, continued for the past 24 hours. A forecast window of September 9-10 is likely for the start of episode 55 fountaining.

Kīlauea volcano is not erupting; the summit eruption in Halemaʻumaʻu is paused. Precursory overflows started yesterday afternoon, but stopped overnight during summit deflation. A forecast window of September 8-10 is likely for the start of episode 55.

Kīlauea volcano is not erupting; the summit eruption in Halemaʻumaʻu is paused. The summit inflated rapidly during the past 24 hours but appears to be stalling this morning. A forecast window of September 7-10 is likely for the start of episode 55.

Kīlauea volcano is not erupting; the summit eruption in Halemaʻumaʻu is paused. The summit inflated rapidly during the past 24 hours after being stalled the previous day. A forecast window of September 7-10 is likely for the start of episode 55.