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This map shows thickness values for lava flows within Halema‘uma‘u crater from the Kīlauea summit eruption that began on December 23, 2024. These values were calculated by topographic differencing between a digital elevation model collected on December 9, 2025—after eruptive episode 38—and one from before the eruption began.
This map shows thickness values for lava flows within Halema‘uma‘u crater from the Kīlauea summit eruption that began on December 23, 2024. These values were calculated by topographic differencing between a digital elevation model collected on December 9, 2025—after eruptive episode 38—and one from before the eruption began.
Photo compilation of the 38 lava fountaining episodes that occurred the first year of the ongoing eruption at the summit of Kīlauea. The eruption started on December 23, 2024, and the eruption continues: episode 39 is expected soon.
Photo compilation of the 38 lava fountaining episodes that occurred the first year of the ongoing eruption at the summit of Kīlauea. The eruption started on December 23, 2024, and the eruption continues: episode 39 is expected soon.
It's been one year since a unique episodic lava fountaining eruption began at Kīlauea’s summit on December 23, 2024—a style of activity not seen in nearly 40 years! Over the past 12 months, Halemaʻumaʻu crater has hosted 38 eruptive episodes, each lasting from a few hours to more than a week, separated by quiet pauses.
It's been one year since a unique episodic lava fountaining eruption began at Kīlauea’s summit on December 23, 2024—a style of activity not seen in nearly 40 years! Over the past 12 months, Halemaʻumaʻu crater has hosted 38 eruptive episodes, each lasting from a few hours to more than a week, separated by quiet pauses.
Photo calendar compilation of the 38 lava fountaining episodes that occurred the first year of the ongoing eruption at the summit of Kīlauea, with month time-stamps. The eruption started on December 23, 2024, and the eruption continues: episode 39 is expected soon.
Photo calendar compilation of the 38 lava fountaining episodes that occurred the first year of the ongoing eruption at the summit of Kīlauea, with month time-stamps. The eruption started on December 23, 2024, and the eruption continues: episode 39 is expected soon.
Aerial photo showing the tephra hill on the western margin of Kaluapele (Kīlauea caldera), which has grown over the past year of 38 lava fountaining episodes within Halema‘uma‘u. The arcuate scarps are from landslides of tephra that have fallen back into the caldera near the north and south vents that have erupted all the material making up the tephra hill.
Aerial photo showing the tephra hill on the western margin of Kaluapele (Kīlauea caldera), which has grown over the past year of 38 lava fountaining episodes within Halema‘uma‘u. The arcuate scarps are from landslides of tephra that have fallen back into the caldera near the north and south vents that have erupted all the material making up the tephra hill.
During a monitoring helicopter overflight on December 19, 2025, USGS geologists captured this southwest looking photo of the tephra hill that has grown over the past year of episodic lava fountaining at the summit of Kīlauea.
During a monitoring helicopter overflight on December 19, 2025, USGS geologists captured this southwest looking photo of the tephra hill that has grown over the past year of episodic lava fountaining at the summit of Kīlauea.
On December 9, USGS-Hawaiian Volcano Observatory geologists conducted an aerial overflight of Kīlauea summit region, following lava fountaining episode 38 of the Halemaʻumaʻu eruption on December 6. In this video, the line on the ground in the lower left portion at the start of the video shows the extent of tephra deposits created during episode 38.
On December 9, USGS-Hawaiian Volcano Observatory geologists conducted an aerial overflight of Kīlauea summit region, following lava fountaining episode 38 of the Halemaʻumaʻu eruption on December 6. In this video, the line on the ground in the lower left portion at the start of the video shows the extent of tephra deposits created during episode 38.
The V3 camera was located on the south rim of Halema‘uma‘u crater at the summit of Kīlauea volcano on the Island of Hawai‘i. The camera, located in a hazardous closed area of Hawai‘i Volcanoes National Park, was buried by tephra from an inclined lava fountain between 9:55 and 9:57 am HST on December 6, during episode 38 that began this morning at 8:45 am.
The V3 camera was located on the south rim of Halema‘uma‘u crater at the summit of Kīlauea volcano on the Island of Hawai‘i. The camera, located in a hazardous closed area of Hawai‘i Volcanoes National Park, was buried by tephra from an inclined lava fountain between 9:55 and 9:57 am HST on December 6, during episode 38 that began this morning at 8:45 am.
Views of Kīlauea summit eruption lava fountaining episode 38 in Halema‘uma‘u crater on the Island of Hawai‘i. This eruptive episode began from the north vent at about 8:45 am HST this morning, December 6.
Views of Kīlauea summit eruption lava fountaining episode 38 in Halema‘uma‘u crater on the Island of Hawai‘i. This eruptive episode began from the north vent at about 8:45 am HST this morning, December 6.
The USGS Hawaiian Volcano Observatory conducted the monitoring overflight of Halema‘uma‘u crater the morning of December 2, 2025.
The USGS Hawaiian Volcano Observatory conducted the monitoring overflight of Halema‘uma‘u crater the morning of December 2, 2025.
During a USGS Hawaiian Volcano Observatory monitoring overflight the morning of December 2, 2025, geologists were able to see a spattering lava surface deep within the north vent. The yellow material around the vents is native sulfur.
During a USGS Hawaiian Volcano Observatory monitoring overflight the morning of December 2, 2025, geologists were able to see a spattering lava surface deep within the north vent. The yellow material around the vents is native sulfur.
Episode 37 of the Kīlauea summit eruption in Halemaʻumaʻu began November 25 at 2:30 p.m. with lava fountaining from the north vent. A wide fountain developed, eventually reaching heights of 500-600 ft (150-180 meters), sending flows across a broad portion of the crater floor.
Episode 37 of the Kīlauea summit eruption in Halemaʻumaʻu began November 25 at 2:30 p.m. with lava fountaining from the north vent. A wide fountain developed, eventually reaching heights of 500-600 ft (150-180 meters), sending flows across a broad portion of the crater floor.
Sounds of lava lake activity within Kilauea Volcano's summit vent inside Halema`uma`u Crater on the afternoon of February 14, 2011. The continuous "crashing wave" noise is the sound of churning lava as gases are released from the lake surface, which is in nearly constant motion.
Sounds of lava lake activity within Kilauea Volcano's summit vent inside Halema`uma`u Crater on the afternoon of February 14, 2011. The continuous "crashing wave" noise is the sound of churning lava as gases are released from the lake surface, which is in nearly constant motion.
Kilauea Volcano in Hawaii has experienced its first explosive eruption in more than 80 years and is now spewing noxious gas at 10 times the normal rate. John Eichelberger, head of the USGS Volcano Hazards Program, fills us in on the situation.
Kilauea Volcano in Hawaii has experienced its first explosive eruption in more than 80 years and is now spewing noxious gas at 10 times the normal rate. John Eichelberger, head of the USGS Volcano Hazards Program, fills us in on the situation.
Last 24 Hours - Live view of Halemaʻumaʻu crater within Kaluapele (Kīlauea caldera), from the south rim of the crater [V3cam]. This camera is a pan-tilt-zoom model and the view may change depending on activity.
Disclaimer
Last 24 Hours - Live view of Halemaʻumaʻu crater within Kaluapele (Kīlauea caldera), from the south rim of the crater [V3cam]. This camera is a pan-tilt-zoom model and the view may change depending on activity.
Disclaimer
Live view of Kaluapele (Kīlauea caldera) and Halemaʻumaʻu crater, from the northeast rim of the caldera [V2cam]. This camera is a pan-tilt-zoom model and the view may change depending on activity.
Disclaimer
Live view of Kaluapele (Kīlauea caldera) and Halemaʻumaʻu crater, from the northeast rim of the caldera [V2cam]. This camera is a pan-tilt-zoom model and the view may change depending on activity.
Disclaimer
This image is from a temporary research camera positioned near Maunaulu, looking northwest toward the upper East Rift Zone of Kīlauea.
Disclaimer
This image is from a temporary research camera positioned near Maunaulu, looking northwest toward the upper East Rift Zone of Kīlauea.
Disclaimer
[MITDcam] Live view of Kīlauea's upper Southwest Rift Zone, looking northwest from a seismic station in the Kaʻū Desert.
[MITDcam] Live view of Kīlauea's upper Southwest Rift Zone, looking northwest from a seismic station in the Kaʻū Desert.
Live view of the eruption in Halemaʻumaʻu, from the northwest rim of the caldera, looking east [V1cam] on the USGS YouTube Channel.
Live view of the eruption in Halemaʻumaʻu, from the northwest rim of the caldera, looking east [V1cam] on the USGS YouTube Channel.
Live view of Halemaʻumaʻu crater within Kaluapele (Kīlauea caldera), from the northwest rim of the crater [V1cam]. This camera is a pan-tilt-zoom model and the view may change depending on activity.
Disclaimer
Live view of Halemaʻumaʻu crater within Kaluapele (Kīlauea caldera), from the northwest rim of the crater [V1cam]. This camera is a pan-tilt-zoom model and the view may change depending on activity.
Disclaimer
