Livestream: Episode 9 of Halemaʻumaʻu eruption at Kīlauea begins with lava fountains 330 feet high

Episode 9 of the ongoing Halemaʻumaʻu eruption at Kīlauea began at 10:16 Tuesday morning (Feb. 11, 2025) with lava fountains producing a lava flow on Halemaʻumaʻu crater floor.

Episode 9 was preceded by small, sporadic spatter fountains that began early Monday morning and increased in intensity overnight. Fountains from the north vent are estimated to be roughly 330 feet high at 10:45 a.m. and covering about a quarter of the Halemaʻumaʻu crater floor, according to the USGS Hawaiian Volcano Observatory. Slow effusion of lava at the south vent began at approximately 10:50 a.m.

Seismic tremor began increasing and tilt at UWD switched from inflation to deflation at about 10:25 a.m. HST. 

Each episode of Halemaʻumaʻu lava fountaining since Dec. 23, 2024, has continued for 13 hours to eight days and episodes have been separated by pauses in eruptive activity lasting less than 24 hours to 12 days. 

Timeline of eruption episodes since Dec. 23, 2025:

No changes have been detected in the East Rift Zone or Southwest Rift Zone. Kīlauea Volcano Alert Level/Aviation Color Code remain at WATCH/ORANGE. All current and recent activity is within Hawaiʻi Volcanoes National Park.