#Halemaʻumaʻu

Episode 21 of the ongoing Kīlauea eruption at Halemaʻumaʻu ended shortly after 8:30 on Sunday night, after about eight hours of sustained fountaining which began at 12:45 p.m. on May 11, 2025. The Halema’uma’u eruption is currently paused.

Episode 20 of the eruption at Kīlauea ended at 9:58 p.m. on Tuesday, May 6, 2025, after 4.5 hours of sustained fountaining. The Halema’uma’u eruption is currently paused.

The main fountaining of Episode 19 of the ongoing Halemaʻumaʻu eruption at Kīlauea has ended after just 8 hours of activity.  

The fountaining phase of the latest episode began at 3:20 a.m. this morning and lasted for 10 hours and 8 minutes.  

Episode 17 of the ongoing Halemaʻumaʻu eruption at Kīlauea began at 10:15 p.m. on April 7, 2025 with the start of lava overflowing from the south vent.

Episode 16 of the ongoing Halemaʻumaʻu eruption at Kīlauea began at 10:57 p.m. HST on Monday, March 31 with the start of lava overflowing from the north vent.

Episode 15 of the ongoing Halemaʻumaʻu eruption began at 12:04 p.m. HST on March 25 with the onset of vigorous overflows from the north vent and is continuing cycles of lava rise, fountaining and vigorous overflows, and drainback events.  No high fountaining was reported in the initial reports following onset.

Episode 14 of the ongoing Halema’uma’u eruption of Kīlauea volcano began continuous lava effusion from the north vent at 9:26 a.m. HST March 19 in Hawai’i Volcanoes National Park.

Episode 13 of the ongoing Halemaʻumaʻu eruption began at 2:36 a.m. on March 10, 2025.  Fountains reached heights of 400-500 feet (120-150 m) by 3:30 a.m. The episode lasted for 12 hours and 37 minutes, ending at 3:13 p.m. on March 11, 2025.

Episode 12 of the Halemaʻumaʻu eruption of Kīlauea within Hawaiʻi Volcanoes National Park ended at 10:37 a.m. HST on March 5 after just under 22 hours of continuous eruptive activity. Fountaining from the south vent ceased at 10:35 a.m. at the same time summit deflation changed to inflation and tremor decreased. Current hazards include volcanic gas emissions and windblown volcanic glass (Pele’s Hair) that may impact Hawai’i Volcanoes National Park and nearby communities.

Currently, air quality levels are elevated at several Hawaiʻi island and Maui island air monitoring stations. As southerly winds are expected to persist throughout the weekend, particulates in the air and levels of sulfur dioxide (SO₂) may increase and fluctuate in various areas of the state, causing poor air quality.

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.

Like fortune tellers who peer into a crystal ball for insight, volcanologists at the USGS Hawaiian Volcano Observatory peer into the tiny crystals contained in lava flows to learn about the magma’s journey before it was erupted onto the surface. 

The eruption at Kīlauea volcano that began on Monday, Dec. 23, continues this morning. Over the past day, vents in the southwest portion of the caldera have continued producing a fan of lava flows covering the western portion of the crater floor during sustained lava fountaining.

Madam Pele continued her impressive fire display this morning, whipping up 65- to 100-foot-high fountains of lava on the floor of Halemaʻumaʻu at Kīlauea volcano.

The eruption at Kīlauea volcano that began on Monday, Dec. 23, continues this morning.  Over the past day, vents in the southwest portion of the caldera have continued producing a fan of lava flows covering the southwest portion of the crater floor, with the vigor of lava fountaining increasing over the past day.

The eruption at Kīlauea volcano that began on Monday, Dec. 23, is now in its third phase with low level eruptive activity reported today.

Kīlauea began erupting again on Dec. 23, 2024. This is the eighth eruption of Kīlauea, and the sixth within Kaluapele, since 2020. These previous eruptions within Kaluapele lasted from less than one week to more than a year in duration. This history of activity, along with continued summit inflation, suggests that eruptive activity may continue to pause and resume in the coming days or weeks.

The eruption of Kīlauea slowed significantly between 3 and 4 p.m. on Monday, and appears to have paused, according to a status update posted by the USGS Hawaiian Volcano Observatory. The eruption started just hours earlier at 2:20 a.m. on Dec. 23, 2024.

Kīlauea volcano began erupting within the summit caldera at approximately 2:20 a.m. HST this morning, Dec. 23, 2024, following an increase in seismicity that began beneath the summit just a half hour earlier, at approximately 2 a.m. HST. Multiple fountaining sources are erupting lava flows on the base of Halemaʻumaʻu crater, wiithin Hawaiʻi Volcanoes National Park.