Posts by Stephen Geiger

Hawaiian Volcano Observatory: Episode 29 of the ongoing Halemaʻumaʻu eruption ended abruptly at 7:54 p.m. HST on June 29 after nearly 11 hours of continuous fountaining. Waning north vent fountains stopped completely at 7:54 p.m. HST, several hours after reaching maximum heights up to 1,100 ft (340 m). Flames were visible at the south vent…

Hawaiian Volcano Observatory: The ongoing Halema‘uma‘u eruption is currently paused. Episode 25 ended on June 11. Summit inflation has resumed, along with persistent, low level seismic tremor. These observations, along with incandescence Visible in both the north and south vents overnight, suggest another episode is possible. Fountaining episodes have occurred approximately once per week since…

Hawaiian Volcano Observatory: The ongoing Halema‘uma‘u eruption is currently paused. Episode 24 ended on June 5. Summit inflation has resumed, along with persistent, low level seismic tremor. Glow was visible from the south vent overnight.

Hawaiian Volcano Observatory: The Halema‘uma‘u eruption remains paused on May 18. Episode 23 is likely to begin in the next 3-6 days. Episode 22 ended at 3:29 p.m. HST on May 16. Both the north and south vents were incandescent last night but overnight glow from the episode 22 lava flows was greatly diminished. Kīlauea’s…

Photo by Janice Wei Hawaiian Volcano Observatory: Episode 21 ended at 08:34 p.m. HST on Sunday, May 11, 2025, after ~8 hours of sustained fountaining. The Halema’uma’u eruption is currently paused. The sustained fountaining phase of episode 21 began at 12:45 p.m. on Sunday, May 11, 2025. Lava fountains and flows erupted primarily from the…

Hawaiian Volcano Observatory: Episode 19 of the ongoing Halemaʻumaʻu eruption ended on May 2. Episode 20 is likely to start in the next 1–3 days.  Kīlauea’s current eruption in Halemaʻumaʻu crater within Kaluapele (the summit caldera) began on December 23, 2024. There have now been 19 episodes separated by pauses in activity. All eruptive activity…

Video by Elizabeth Fien Photo by Lynette Smith Hawaiian Volcano Observatory: Episode 18 of the ongoing Halemaʻumaʻu eruption resumed with lava overflowing the south vent at 3:20 a.m. HST on April 22 followed by the onset of fountaining from both vents at 3:30 a.m. HST. Lava began overflowing the north vent at 3:47 a.m. HST.…

Hawaiian Volcano Observatory: The ongoing Halemaʻumaʻu eruption is paused; episode 17 ended at 9:45 a.m. HST on April 9 when low fountaining at the south vent stopped. Both vents are now degassing but only the south vent is glowing at night. If the eruptive activity reverts to pre-episode 17 behavior, data indicate that episode 18…

Hawaiian Volcano Observatory: Episode 16 of the ongoing Halemaʻumaʻu eruption ended on Wednesday, April 2.  The summit magma reservoir continues to reinflate indicating that another lava fountaining episode is likely to begin in the next 3-6 days (Wednesday to Saturday).     Kīlauea’s current eruption in Halemaʻumaʻu crater within Kaluapele (the summit caldera) began on…

Photo by Lynette Smith Hawaiian Volcano Observatory Status Report: Episode 13 of the ongoing Halemaʻumaʻu eruption began at 2:36 a.m. HST on March 10.  Fountains reached heights of 400-500 feet (120-150 m) by 3:30 a.m. Episode 13 was preceded by small, sporadic spatter fountains 15-30 feet high (5-10 m) that began at approximately 1:30 p.m.…

USGS Hawaiian Volcano Observatory – Episode 11 of the ongoing Halemaʻumaʻu eruption began at 6:26 p.m. HST on February 25 and fountains reached peak heights of around 600 feet (180 m) 1-2 hours later. The eruption ended on erupting after 12 hours and 40 minutes of activity. Kīlauea’s current eruption in Halemaʻumaʻu crater within Kaluapele…

USGS Hawaiian Volcano Observatory: Episode 10 of the ongoing Halemaʻumaʻu eruption ended abruptly at 9:18 a.m. HST on February 20 after about 13 hours of eruptive activity. Kīlauea’s current eruption in Halemaʻumaʻu crater within Kaluapele (the summit caldera) began on December 23, 2024. There have been 10 episodes of lava fountaining separated by pauses in…

Hawaiian Volcano Observatory: Episode 8 of the ongoing Halemaʻumaʻu eruption began at 9:52 p.m. HST on Monday, 3 February 2025 and is currently fountaining from the north vent. Episode 8 was preceded by small, sporadic spatter fountains that began on Sunday evening, February 2, which began to increase in intensity in the afternoon on 3…

Hawaiian Volcano Observatory: “Episode 6 began on January 24 at 11:28 p.m. and ended just over 13 hours later. Lava fountain activity gradually declined throughout the morning of January 25 and fountain-fed lava flows stopped erupting out of the north vent at 12:36 p.m. Lava flows from episode 6 covered nearly half of Halemaʻumaʻu crater…

The eruption in Halemaʻumaʻu Crater that started Monday, 12-23-2024 one week later on Monday morning, 12-30-2024 around 5:30 am.