Telephoto aerial image of eruption in Halemaʻumaʻu at Kīlauea Volcano's summit taken during an overflight at approximately 7:30 a.m. HST on September 30, 2021. This photo shows several of the fountaining sources on the base of Halemaʻumaʻu, which are only a few meters (yards) high. USGS image by K. Mulliken.
Images
Volcano Hazard Program images.
Telephoto aerial image of eruption in Halemaʻumaʻu at Kīlauea Volcano's summit taken during an overflight at approximately 7:30 a.m. HST on September 30, 2021. This photo shows several of the fountaining sources on the base of Halemaʻumaʻu, which are only a few meters (yards) high. USGS image by K. Mulliken.
Telephoto aerial image of eruption in Halemaʻumaʻu at Kīlauea Volcano's summit taken during an overflight at approximately 7:30 a.m. HST on September 30, 2021. A series of fountains in the central portion of the lava lake are visible, as well as the prominent vent in the west wall of Halemaʻumaʻu.
Telephoto aerial image of eruption in Halemaʻumaʻu at Kīlauea Volcano's summit taken during an overflight at approximately 7:30 a.m. HST on September 30, 2021. A series of fountains in the central portion of the lava lake are visible, as well as the prominent vent in the west wall of Halemaʻumaʻu.
Telephoto aerial image of eruption in Halemaʻumaʻu at Kīlauea Volcano's summit taken during an overflight at approximately 7:30 a.m. HST on September 30, 2021. This photo shows two of the many spattering sources active in the base of Halemaʻumaʻu, feeding the growing lava lake. The south wall of Halemaʻumaʻu crater is visible in the upper left portion of the image.
Telephoto aerial image of eruption in Halemaʻumaʻu at Kīlauea Volcano's summit taken during an overflight at approximately 7:30 a.m. HST on September 30, 2021. This photo shows two of the many spattering sources active in the base of Halemaʻumaʻu, feeding the growing lava lake. The south wall of Halemaʻumaʻu crater is visible in the upper left portion of the image.
Telephoto aerial image of eruption in Halemaʻumaʻu at Kīlauea Volcano's summit taken during an overflight at approximately 7:30 a.m. HST on September 30, 2021. This photo shows the eastern portoin of the nascent lava lake, where it meets the wall of Halemaʻumaʻu crater.
Telephoto aerial image of eruption in Halemaʻumaʻu at Kīlauea Volcano's summit taken during an overflight at approximately 7:30 a.m. HST on September 30, 2021. This photo shows the eastern portoin of the nascent lava lake, where it meets the wall of Halemaʻumaʻu crater.
Oblique telephoto aerial image of eruption in Halemaʻumaʻu at Kīlauea Volcano's summit taken during an overflight at approximately 7:30 a.m. HST on September 30, 2021.
Oblique telephoto aerial image of eruption in Halemaʻumaʻu at Kīlauea Volcano's summit taken during an overflight at approximately 7:30 a.m. HST on September 30, 2021.
Oblique aerial image of eruption in Halemaʻumaʻu at Kīlauea Volcano's summit taken during an overflight at approximately 7:30 a.m. HST on September 30, 2021. This view shows multiple active spattering sources in southern central part of Halemaʻumaʻu, and associated plumes of volcanic gas.
Oblique aerial image of eruption in Halemaʻumaʻu at Kīlauea Volcano's summit taken during an overflight at approximately 7:30 a.m. HST on September 30, 2021. This view shows multiple active spattering sources in southern central part of Halemaʻumaʻu, and associated plumes of volcanic gas.
Telephoto aerial image of eruption in Halemaʻumaʻu at Kīlauea Volcano's summit taken during an overflight at approximately 7:30 a.m. HST on September 30, 2021. The active vent in the west wall of Halemaʻumaʻu is vigorously fountaining, and is one of many fountaining sources active in the lava lake right now.
Telephoto aerial image of eruption in Halemaʻumaʻu at Kīlauea Volcano's summit taken during an overflight at approximately 7:30 a.m. HST on September 30, 2021. The active vent in the west wall of Halemaʻumaʻu is vigorously fountaining, and is one of many fountaining sources active in the lava lake right now.
![Color map of lava lake temperature](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/Kilaueasummit20210930v2.jpg?itok=wwlr5SZk)
A helicopter overflight on September 30, 2021, at approximately 7:30 a.m. HST allowed for aerial visual and thermal imagery to be collected of Halema‘uma‘u crater at the summit of Kīlauea. This thermal map shows the extent of the new lava lake within Halema‘uma‘u.
A helicopter overflight on September 30, 2021, at approximately 7:30 a.m. HST allowed for aerial visual and thermal imagery to be collected of Halema‘uma‘u crater at the summit of Kīlauea. This thermal map shows the extent of the new lava lake within Halema‘uma‘u.
![Color thermal map of lava lake](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/image-588.jpg?itok=77Ai1qnB)
A helicopter overflight on September 30, 2021, at approximately 7:30 a.m. HST allowed for aerial visual and thermal imagery to be collected of Halema‘uma‘u crater at the summit of Kīlauea. This thermal map shows a closer view of the new lava lake within Halema‘uma‘u.
A helicopter overflight on September 30, 2021, at approximately 7:30 a.m. HST allowed for aerial visual and thermal imagery to be collected of Halema‘uma‘u crater at the summit of Kīlauea. This thermal map shows a closer view of the new lava lake within Halema‘uma‘u.
![Color image of lava lake temperature](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/multimediaFile-3305.jpg?itok=1tTANpIA)
This thermal image was taken during the morning overflight on September 30, 2021, and looks west across Halema‘uma‘u crater, at the summit of Kīlauea. Several fountains are emerging through the active lake surface, in addition to fountaining on the west margin of the lake.
This thermal image was taken during the morning overflight on September 30, 2021, and looks west across Halema‘uma‘u crater, at the summit of Kīlauea. Several fountains are emerging through the active lake surface, in addition to fountaining on the west margin of the lake.
![This view from the northwest rim of Halema'uma'u shows two webcams facing the new eruption, with fissures producing lava](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/IMG_2165_0.jpg?itok=TE1I68tJ)
Photo of the new lava lake within Halema'uma'u crater at Kīlauea summit taken early in the morning on September 30. This view from the northwest rim of Halema'uma'u shows two webcams facing the new eruption, with fissures producing lava that is accumulating within the crater.
Photo of the new lava lake within Halema'uma'u crater at Kīlauea summit taken early in the morning on September 30. This view from the northwest rim of Halema'uma'u shows two webcams facing the new eruption, with fissures producing lava that is accumulating within the crater.
![Color map of lava lake at volcano summit](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/image-584_annotated_0.jpg?itok=H0qHd9Tz)
At approximately 3:20 p.m. HST on September 29, 2021, the USGS Hawaiian Volcano Observatory (HVO) detected glow in Kīlauea summit webcam images indicating that an eruption has commenced within Halemaʻumaʻu crater in Kīlauea’s summit caldera, within Hawai‘i Volcanoes National Park.
At approximately 3:20 p.m. HST on September 29, 2021, the USGS Hawaiian Volcano Observatory (HVO) detected glow in Kīlauea summit webcam images indicating that an eruption has commenced within Halemaʻumaʻu crater in Kīlauea’s summit caldera, within Hawai‘i Volcanoes National Park.
![Color photograph of fissure eruption](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/MicrosoftTeams-image%20%2846%29.png?itok=9eXKuCZ3)
Kīlauea volcano is erupting. At approximately 3:20 p.m. HST on September 29, 2021, an eruption began within Halemaʻumaʻu crater in Kīlauea’s summit caldera, within Hawai‘i Volcanoes National Park. Fissures at the base of Halemaʻumaʻu crater are generating lava flows on the surface of the lava lake that was active until May 2021.
Kīlauea volcano is erupting. At approximately 3:20 p.m. HST on September 29, 2021, an eruption began within Halemaʻumaʻu crater in Kīlauea’s summit caldera, within Hawai‘i Volcanoes National Park. Fissures at the base of Halemaʻumaʻu crater are generating lava flows on the surface of the lava lake that was active until May 2021.
![Color photograph of fissure eruption](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/MicrosoftTeams-image%20%2845%29_0.png?itok=pEQuNEOs)
At approximately 3:20 p.m. HST on September 29, 2021, an eruption began within Halemaʻumaʻu crater in Kīlauea’s summit caldera, within Hawai‘i Volcanoes National Park.
At approximately 3:20 p.m. HST on September 29, 2021, an eruption began within Halemaʻumaʻu crater in Kīlauea’s summit caldera, within Hawai‘i Volcanoes National Park.
![Color photograph of tephra](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/MicrosoftTeams-image%20%2848%29.png?itok=RbRWQewy)
The new eruption within Halema‘uma‘u crater at Kīlauea's summit is depositing tephra downwind of the erupting vents. Tephra is a term that describes products of an eruption that travel through the air before being deposited.
The new eruption within Halema‘uma‘u crater at Kīlauea's summit is depositing tephra downwind of the erupting vents. Tephra is a term that describes products of an eruption that travel through the air before being deposited.
![Color photograph of volcanic vent erupting](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/MicrosoftTeams-image%20%2847%29.png?itok=-C_N_Jl0)
At approximately 4:43 p.m. HST on September 29, 2021, another vent opened on the west wall of Halemaʻumaʻu crater. This telephoto image shows the vent area and lava fountain through volcanic gas. USGS image.
At approximately 4:43 p.m. HST on September 29, 2021, another vent opened on the west wall of Halemaʻumaʻu crater. This telephoto image shows the vent area and lava fountain through volcanic gas. USGS image.
![An image of the new Kīlauea summit fissure eruption within Halema'uma'u crater taken at approximately 4:15 p.m. HST on September](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/IMG_7551.jpeg?itok=6O9fniAR)
An image of the new Kīlauea summit fissure eruption within Halema'uma'u crater taken at approximately 4:15 p.m. HST on September 29, 2021.
An image of the new Kīlauea summit fissure eruption within Halema'uma'u crater taken at approximately 4:15 p.m. HST on September 29, 2021.
![Color photograph of volcanic vents](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/MicrosoftTeams-image%20%2853%29.png?itok=OMERtvDd)
At approximately 4:43 p.m. HST on September 29, 2021, another vent opened on the west wall of Halemaʻumaʻu crater, a little more than an hour after new fissure vents opened on the floor of Halemaʻumaʻu crater. By 5:09 p.m., when this photo was taken, the west wall vents had grown.
At approximately 4:43 p.m. HST on September 29, 2021, another vent opened on the west wall of Halemaʻumaʻu crater, a little more than an hour after new fissure vents opened on the floor of Halemaʻumaʻu crater. By 5:09 p.m., when this photo was taken, the west wall vents had grown.
![Color photograph of lava lake](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/MicrosoftTeams-image%20%2852%29.png?itok=no-arNyd)
An eruption began within Halemaʻumaʻu crater in Kīlauea’s summit caldera, within Hawai‘i Volcanoes National Park, on September 29, 2021. Vigorous lava fountains formed in the middle part of the lava lake that was active in Halemaʻumaʻu crater from December 2020 until May 2021.
An eruption began within Halemaʻumaʻu crater in Kīlauea’s summit caldera, within Hawai‘i Volcanoes National Park, on September 29, 2021. Vigorous lava fountains formed in the middle part of the lava lake that was active in Halemaʻumaʻu crater from December 2020 until May 2021.
![Color image of volcanic gas](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/MicrosoftTeams-image%20%2851%29.png?itok=xsJOvuUq)
The eruption that began today within Halemaʻumaʻu crater in Kīlauea’s summit caldera, within Hawai‘i Volcanoes National Park, is generating a vigorous plume of volcanic gas.
The eruption that began today within Halemaʻumaʻu crater in Kīlauea’s summit caldera, within Hawai‘i Volcanoes National Park, is generating a vigorous plume of volcanic gas.
This reference map depicts the ongoing Kīlauea summit eruption as of approximately 6:00 PM on September 29, 2021. Several new fissures (orange lines) within Halema‘uma‘u have erupted enough lava (red) to cover nearly all of the 12/2021–5/2021 lava lake by more than 36 ft (11 m).
This reference map depicts the ongoing Kīlauea summit eruption as of approximately 6:00 PM on September 29, 2021. Several new fissures (orange lines) within Halema‘uma‘u have erupted enough lava (red) to cover nearly all of the 12/2021–5/2021 lava lake by more than 36 ft (11 m).