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Hawaiian Volcano Observatory images of eruptive activity, field work, and more.
COSMO-SkyMed Second Generation (CSG) interferogram for the period from August 2 to August 10, 2025, covering Kīlauea volcano’s summit region.
COSMO-SkyMed Second Generation (CSG) interferogram for the period from August 2 to August 10, 2025, covering Kīlauea volcano’s summit region.
On August 18, USGS scientists visited the rim of Halemaʻumaʻu crater at the summit of Kīlauea volcano to view the north vent. The goal of the observation was to confirm if lava was moving up inside the vent. While perched lava was not observed, lava spatter was visible intermittently during gas pistoning events.
On August 18, USGS scientists visited the rim of Halemaʻumaʻu crater at the summit of Kīlauea volcano to view the north vent. The goal of the observation was to confirm if lava was moving up inside the vent. While perched lava was not observed, lava spatter was visible intermittently during gas pistoning events.
On August 18, USGS Scientist Mike Zoeller with the Hawaiian Volcano Observatory, a Hawai‘i Volcanoes National Park park ranger, and two researchers from the University of Colorado conducted UAS (uncrewed aircraft system) work in the vicinity of Halemaʻumaʻu crater at Kīlauea volcano.
On August 18, USGS Scientist Mike Zoeller with the Hawaiian Volcano Observatory, a Hawai‘i Volcanoes National Park park ranger, and two researchers from the University of Colorado conducted UAS (uncrewed aircraft system) work in the vicinity of Halemaʻumaʻu crater at Kīlauea volcano.
On August 18, USGS Scientist Mike Zoeller with the Hawaiian Volcano Observatory, a Hawai‘i Volcanoes National Park park ranger and two researchers from the University of Colorado conducted UAS (uncrewed aircraft system) work in the vicinity of Halemaʻumaʻu crater at Kīlauea volcano. In this photo, staff monitor the UAS remotely and take photos for analysis.
On August 18, USGS Scientist Mike Zoeller with the Hawaiian Volcano Observatory, a Hawai‘i Volcanoes National Park park ranger and two researchers from the University of Colorado conducted UAS (uncrewed aircraft system) work in the vicinity of Halemaʻumaʻu crater at Kīlauea volcano. In this photo, staff monitor the UAS remotely and take photos for analysis.
On August 18, field observations at the summit of Kīlauea confirmed that lava was moving up inside the north vent. While perched lava was not observed, lava spatter was visible intermittently during gas pistoning events. USGS photo by H. Weiss-Racine.
On August 18, field observations at the summit of Kīlauea confirmed that lava was moving up inside the north vent. While perched lava was not observed, lava spatter was visible intermittently during gas pistoning events. USGS photo by H. Weiss-Racine.
This photo was taken on August 18, looking southeast toward the large tephra deposit that has accumulated since the episodic eruptions at Halemaʻumaʻu crater at Kīlauea volcano began in late December of 2024. The tephra deposit is now about 75 feet (about 23 meters) thick.
This photo was taken on August 18, looking southeast toward the large tephra deposit that has accumulated since the episodic eruptions at Halemaʻumaʻu crater at Kīlauea volcano began in late December of 2024. The tephra deposit is now about 75 feet (about 23 meters) thick.
This close-up view of the Kīlauea summit eruption's north vent was captured during an uncrewed aircraft system (UAS) overflight conducted by Hawaiian Volcano Observatory scientists on August 18. Looking down to the southwest, the Halema‘uma‘u crater wall is out of view to the top of the frame.
This close-up view of the Kīlauea summit eruption's north vent was captured during an uncrewed aircraft system (UAS) overflight conducted by Hawaiian Volcano Observatory scientists on August 18. Looking down to the southwest, the Halema‘uma‘u crater wall is out of view to the top of the frame.
Sand and large, wave-rounded boulders frame the edge of the 2018 Kīlauea lava delta near Isaac Hale Beach Park. Wave action has eroded these boulders from the 2018 lava flow and deposited them on the beach. USGS photo.
Sand and large, wave-rounded boulders frame the edge of the 2018 Kīlauea lava delta near Isaac Hale Beach Park. Wave action has eroded these boulders from the 2018 lava flow and deposited them on the beach. USGS photo.
On August 13, USGS scientists collect recent spatter samples of episode 30 lava from a temporary fissure feature that appeared early in episode 30. The chemistry of these lava samples is analyzed to better understand the source and storage of magma driving Hawaiian eruptions. USGS photo by K. Mulliken
On August 13, USGS scientists collect recent spatter samples of episode 30 lava from a temporary fissure feature that appeared early in episode 30. The chemistry of these lava samples is analyzed to better understand the source and storage of magma driving Hawaiian eruptions. USGS photo by K. Mulliken
August 13 - View of the lava/tephra pile from the sampling location on the temporary fissure from episode 30. The helicopter landed on the crater floor on the new pāhoehoe lava that formed while the talus slope of the fissure vent was erupting.
August 13 - View of the lava/tephra pile from the sampling location on the temporary fissure from episode 30. The helicopter landed on the crater floor on the new pāhoehoe lava that formed while the talus slope of the fissure vent was erupting.
This image from August 13, 2025, shows spatter on the western wall of Halema‘uma‘u crater where samples were collected. No molten lava was visible during the overflight and the Kīlauea summit eruption remains paused. USGS photo by D. Downs
This image from August 13, 2025, shows spatter on the western wall of Halema‘uma‘u crater where samples were collected. No molten lava was visible during the overflight and the Kīlauea summit eruption remains paused. USGS photo by D. Downs
On August 12, USGS-Hawaiian Volcano Observatory scientists visited the ML/MTcam monitoring site on the north side of Moku‘āweoweo—the summit caldera of Mauna Loa volcano. At the site, field engineers changed batteries, installed a new antenna, and replaced solar panels that had been damaged during winter storms. USGS photo by M. Cappos.
On August 12, USGS-Hawaiian Volcano Observatory scientists visited the ML/MTcam monitoring site on the north side of Moku‘āweoweo—the summit caldera of Mauna Loa volcano. At the site, field engineers changed batteries, installed a new antenna, and replaced solar panels that had been damaged during winter storms. USGS photo by M. Cappos.
A USGS Hawaiian Volcano Observatory field engineer works on the infrastructure that supports the MLcam and MTcam on the north rim of Moku‘āweoweo, the summit caldera of Mauna Loa volcano. The MLcam provides visual imagery of Moku‘āweoweo while the MTcam provides thermal imagery.
A USGS Hawaiian Volcano Observatory field engineer works on the infrastructure that supports the MLcam and MTcam on the north rim of Moku‘āweoweo, the summit caldera of Mauna Loa volcano. The MLcam provides visual imagery of Moku‘āweoweo while the MTcam provides thermal imagery.
A view of Moku‘āweoweo, the summit caldera of Mauna Loa, taken from the north rim on August 12, 2025.
A view of Moku‘āweoweo, the summit caldera of Mauna Loa, taken from the north rim on August 12, 2025.
A USGS Hawaiian Volcano Observatory field engineer installs a new antenna at the monitoring station located just southwest of Moku‘āweoweo, where the MOcam and SPcam are located.
A USGS Hawaiian Volcano Observatory field engineer installs a new antenna at the monitoring station located just southwest of Moku‘āweoweo, where the MOcam and SPcam are located.
The SPcam (wide angle visual webcam) and MSTcam (thermal camera) are situated next to one another in the summit region of Mauna Loa. Both cameras look south to monitor the uppermost Southwest Rift Zone of Mauna Loa. USGS photo by M. Patrick.
The SPcam (wide angle visual webcam) and MSTcam (thermal camera) are situated next to one another in the summit region of Mauna Loa. Both cameras look south to monitor the uppermost Southwest Rift Zone of Mauna Loa. USGS photo by M. Patrick.
The telemetry network was upgraded yesterday, August 12, 2025, on Mauna Loa to accommodate new webcams around the summit and upper Southwest Rift Zone. Here, an HVO field engineer installs a new antenna that will allow for more efficient transfer of volcano monitoring datasets from remote stations back to the USGS Hawaiian Volcano Observatory.
The telemetry network was upgraded yesterday, August 12, 2025, on Mauna Loa to accommodate new webcams around the summit and upper Southwest Rift Zone. Here, an HVO field engineer installs a new antenna that will allow for more efficient transfer of volcano monitoring datasets from remote stations back to the USGS Hawaiian Volcano Observatory.
A USGS Hawaiian Volcano Observatory field engineer updates the infrastructure at a remote station in the summit region of Mauna Loa. At this location, two webcams (MOcam and SPcam) were upgraded and a new thermal webcam, the MSTcam, was installed on Mauna Loa summit. USGS photo by M. Patrick.
A USGS Hawaiian Volcano Observatory field engineer updates the infrastructure at a remote station in the summit region of Mauna Loa. At this location, two webcams (MOcam and SPcam) were upgraded and a new thermal webcam, the MSTcam, was installed on Mauna Loa summit. USGS photo by M. Patrick.
The MOcam webcam is situated in the south end of Mokuʻāweoweo, Mauna Loa's summit caldera, and it looks north to monitor the southern portion of the caldera floor. Nearby, the SPcam is pointed south to monitor the uppermost Southwest Rift Zone of Mauna Loa. USGS photo by M. Patrick.
The MOcam webcam is situated in the south end of Mokuʻāweoweo, Mauna Loa's summit caldera, and it looks north to monitor the southern portion of the caldera floor. Nearby, the SPcam is pointed south to monitor the uppermost Southwest Rift Zone of Mauna Loa. USGS photo by M. Patrick.
An ahu (cairn) marks the south end of Mokuʻāweoweo, the caldera at the summit of Mauna Loa. This photo shows the cone that formed during the Mauna Loa summit eruption in 1949, in the upper right.
An ahu (cairn) marks the south end of Mokuʻāweoweo, the caldera at the summit of Mauna Loa. This photo shows the cone that formed during the Mauna Loa summit eruption in 1949, in the upper right.
This aerial image, taken during a Kīlauea summit overflight on August 8, 2025, looks southwest towards the ocean. In the foreground, two small lava flows that were erupted from Kīlauea in 1982 and 1971 are visible. The darker one on the left is from September 1971, while the shiny grey one on the right is from September 1982.
This aerial image, taken during a Kīlauea summit overflight on August 8, 2025, looks southwest towards the ocean. In the foreground, two small lava flows that were erupted from Kīlauea in 1982 and 1971 are visible. The darker one on the left is from September 1971, while the shiny grey one on the right is from September 1982.