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Photo & Video Chronology


USGS-HVO photos and videos are in the public domain and can be freely downloaded from the HVO website (click on a photo to open a full resolution copy). Please credit "U.S. Geological Survey" for any imagery used.

July 13, 2020
Views of the 2018 lower East Rift Zone lava flow field along Highway 132

HVO geologists visited the lower East Rift Zone lava flow field this past week to make continued measurements and observations, to better understand and reconstruct the dynamics of the Fissure 8 lava flow. This photo shows the channel wall in the braided channel region of the flow. The channel wall here is about 6 m (20 feet) high, and the channel just upstream of this position is about 75 m (250 feet) wide. The large scale of the channel is a testament to the unusually high rates of flow, which exceeded 100 cubic meters (yards) per second, in the Fissure 8 channel. Note the small ferns growing on the upper channel wall. USGS photo by M. Patrick.

Left: This photo shows the highway roadcut exposing a cross section of the channel levee. The levee is built from many small, fluid pāhoehoe overflows spilling from the channel over the rim, shown by the thin layers here. USGS photo by M. Patrick. Right: Looking downstream along one of the two channels in this section. The channel here is about 60 m (200 feet) wide. USGS photo by M. Patrick.

This roadcut exposes a cross section of a portion of the Fissure 8 flow that was ‘a‘ā. When ‘a‘ā flows are active, the core of the flow is fluid and moves downslope, with the rubbly clinker on the top surface carried along like a conveyor belt. This roadcut exposes the dense core that was the fluid portion, topped by the layer of rubbly clinker. USGS photo by M. Patrick.
June 30, 2020
No significant changes at Kīlauea's summit water lake

No significant changes were observed during today's visit to monitor Kīlauea's summit water lake. The lake surface exhibited some interesting color variations today, but within the range of those previously observed. The sharp color boundary between tan and brown zones has been common. Today, a wedge-shaped, slightly greenish zone was present in the west portion of the lake (towards bottom of image). Laser rangefinder measurements indicate that the lake level continues to slowly rise. USGS photo by M. Patrick.

Left: In the eastern portion of Kīlauea's summit lake, the dark brown zone had a slightly mottled appearance, but this pattern was transient and gone within about ten minutes. USGS photo by M. Patrick. Right: This photo of Kīlauea's summit water lake was taken from the KWcam webcam site on the western caldera rim. The sharp color boundary between tan and dark brown zones is easily visible. A small greenish zone in the west end of the lake (bottom right of image) was more conspicuous today. These zones of greenish water correspond with areas of higher temperatures in the thermal imagery, and may represent zones of water influx into the lake. USGS photo by M. Patrick.

This panorama shows the view of Halema‘uma‘u from the northwest caldera rim, and shows much of the caldera floor that subsided during 2018. The water lake is visible at the bottom of Halema‘uma‘u. Kīlauea Iki is in the upper left portion of the photo. USGS photo by M. Patrick.
June 23, 2020
Continued slow rise of water in Halema‘uma‘u

The water lake within Halema‘uma‘u crater, at the summit of Kīlauea, continues to slowly rise, with no significant changes in recent weeks. USGS photo by M. Patrick.

Left: The eastern end of Kīlauea's summit water lake in Halema‘uma‘u crater, shown here, is slightly warmer than the lake center, and commonly has steam rising from the water surface. USGS photo by M. Patrick. Right: A close-up of Kīlauea's summit water lake from the webcam site on the west caldera rim. Ripples are evident on the water surface. USGS photo by M. Patrick. For a sense of scale, compare this view with that of the KWcam webcam: https://volcanoes.usgs.gov/observatories/hvo/webcam.html?webcam=KWcam

This thermal video shows typical activity at Kīlauea's summit water lake. Steam carried across the water surface often masks thermal features on the underlying water surface. USGS video by M. Patrick.
June 1, 2020
Virtual flyover of Kīlauea summit

A helicopter overflight provided aerial photographs of Kīlauea caldera on May 29, and these photos were used to construct a 3D model. The water lake is visible as the tan area in the deepest portion of Halema‘uma‘u crater. For scale, the water lake is 270 m (885 ft) long and approximately 600 m (1970 ft) below the western caldera rim. USGS photos by K. Mulliken.
Video of Kīlauea summit from May 29 overflight

This wide-angle video was captured during a helicopter overflight on May 29, and skirts the southern border of Halema‘uma‘u crater. The water lake, filling the bottom of the crater, was tan and brown today, and showed no significant changes. USGS video by M. Patrick.
May 29, 2020
Overflight of Kīlauea's summit

No significant changes were observed at Kīlauea's summit today, during a routine overflight by Hawaiian Volcano Observatory geologists. Nice weather allowed for clear views of Kīlauea Caldera and this photo, looking west, shows the collapse area that formed during 2018, as well as the summit of Mauna Loa in the background. Lava flows that erupted in 1971 and 1974 (darker color relative to other lava flows on Kīlauea Caldera floor) border the foreground in this image. USGS photo by K. Mulliken.

Left: This image, looking northwest from the summit of Kīlauea, shows the growing crater lake within Halema‘uma‘u, with Mauna Kea summit in the background. Kīlauea’s summit lake was rusty-brown in color today. Right: Steep walls, collapsed blocks, and rubble border Halema‘uma‘u Crater and Kīlauea's growing summit crater lake. In this photo, looking northwest, the summits of both Kīlauea (foreground) and Mauna Loa (background) are visible. USGS photos by K. Mulliken

During today's overflight of Kīlauea summit, both thermal and visual cameras were used to characterize activity. Comparing thermal (left) to visual (right) images of nearly the same view, you can see that the growing crater lake at Kīlauea's summit remains hot. Steam emanates from the lake surface in the visual image on the right, and the yellow and red colors in the thermal image indicate that the lake has a hotter surface temperature relative to the rocks and rubble around it. The lake isn't the only hot feature within Halema‘uma‘u. Fumaroles on the crater wall, which stand out as white areas indicating alteration in the visual image, have small zones of elevated temperature in the thermal image. USGS images by M. Patrick (left) and K. Mulliken (right).

Portions of Crater Rim Drive are visible in three locations within this photo, which is looking north. Prior to 2018, Crater Rim Drive used to cross the southwest portion of Kīlauea Caldera. The collapse events of 2018 made the road impassable, as parts became severely damaged due to earthquakes, or completely collapsed. In the bottom half of this photo, fragments of the road are visible in the left center, the center of the image just below the lake, and the bottom right corner. USGS photo by K. Mulliken.

Keanakāko‘i Crater is featured prominently in the foreground of this photo, looking southeast during an overflight of Kīlauea's summit today. In 1974, fissures erupted in the vicinity of Keanakāko‘i Crater, partially filling it and feeding lava flows that traveled south. You can read more about the 1974 Kīlauea eruption in this "Volcano Watch" article: https://volcanoes.usgs.gov/observatories/hvo/hvo_volcano_watch.html?vwid=134. USGS photo by K. Mulliken.

This view of Kīlauea's East Rift Zone was captured from the summit during today's overflight. Kīlauea's East Rift Zone has been the location of numerous eruptions over the past decades, some brief (days) and some longer-lived (years). In this photo, three prominent lava shields—which form during longer-lived eruptions—are visible: Mauna Ulu, Kānenuiohamo, and Pu‘u ‘Ō‘ō. Mauna Ulu was active from 1969–1974; Kānenuiohamo formed at least several hundred years ago; Pu‘u ‘Ō‘ō was active from 1983–2018.
May 15, 2020
Wide view of the 2018 summit collapse from the south rim

This panorama shows the view from the south rim of the 2018 collapse at Kīlauea's summit, providing a sense of the expansiveness of the collapse. The yellow fumarolic areas in the center of the photo are on the north wall of Halema‘uma‘u. A small sliver of the rising lake at the bottom of Halema‘uma‘u is visible near the bottom of the photo. On the right side of the photo is the downdropped block. The remains of Crater Rim Drive and the Halema‘uma‘u parking lot are visible in the bottom center. Prior to the 2018 collapse, the roadway and parking lot were at approximately the same elevation as where this photo was taken, and they are now 110 m (360 feet) below. The former HVO building and Jaggar Museum (both damaged during 2018) form a small bump on the skyline, just left of the centerline of the photo. USGS photo by M. Patrick.
Continued slow rise of water in Halema‘uma‘u

The water level of the lake at the bottom of Halema‘uma‘u continues to slowly rise. No significant changes were observed in the lake appearance during today's field visit. USGS photo by M. Patrick.
May 11, 2020
No significant changes at Kīlauea summit

No major changes were observed today at Kīlauea's summit. The water level within Halema‘uma‘u continues to slowly rise, and the water surface has a sharp color boundary separating the east and west portions of the lake. USGS photo by M. Patrick.

Left: A small rockslide occurred today on the south wall of Halema‘uma‘u, sending boulders into the water at the bottom of the crater. USGS video by M. Patrick. Right: A view from the south rim of Halema‘uma‘u shows a lower collapsed block which has remains of Crater Rim Drive and the Halema‘uma‘u parking lot. The white feature in the lower right is a stop sign that was present at the eastern exit of the parking lot. Near the top of the photo, a lower collapsed block is formed from the remains of the pre-2018 Halema‘uma‘u crater floor. USGS photo taken May 6 by M. Patrick.
May 6, 2020
Pu‘u ‘Ō‘ō check-up

Left: On April 16, 2020, an HVO technician inspected a crack that has been widening near a power hub on Pu‘u ‘Ō‘ō. Rockfalls from the north rim of Pu‘u ‘Ō‘ō (where the hub is located) have caused the rim to recede, and it is now very close to the power/communications hub. Right: HVO technician inspects power/communication station at Pu‘u ‘Ō‘ō on on April 16, 2020. USGS photos by F. Younger.

The PO and PT webcams viewed from the power/communications hub on Pu‘u ‘Ō‘ō. Continued rockfalls from the north rim of Pu‘u ‘Ō‘ō have destabilized the peak they are perched on, and the cracks behind the cameras are slowing growing wider. USGS photo by F. Younger on April 16, 2020.
May 3, 2020
A look back at Halema‘uma‘u two years ago

The lower East Rift Zone eruption started two years ago, on May 3, 2018. At that time, the lava lake in Halema‘uma‘u, at Kīlauea's summit, had just started dropping in response to the changes in the East Rift Zone. Today, two years later, a new lake is present in Halema‘uma‘u, but formed from water. Many of the monitoring techniques remain the same, however. HVO scientists make routine visual observations, measure the lake level with a laser rangefinder, and track the activity 24/7 with webcams and thermal cameras. USGS photos by C. Parcheta and M. Patrick.
Continued slow rise of water in Halema‘uma‘u

Late afternoon mist moving west across the caldera produced a rainbow above Halema‘uma‘u during today's visit to measure the water level. The water continues to slowly rise. USGS photo by M. Patrick.

The lake was more brown in color than the last visit, with a sharp color boundary cutting across the lake. Color variations like this are common. USGS photo by M. Patrick.
April 21, 2020
Continued slow rise of water in Halema‘uma‘u

No major changes have been observed in Kīlauea's summit water pond over the past week. The water level continues to slowly rise. For more information see links and data here: https://volcanoes.usgs.gov/volcanoes/kilauea/summit_water_resources.html USGS photo by M. Patrick.

The view from the webcam site shows the western end of the pond (lower right), which often varies from green to brown. Color changes such as these are common. USGS photos by M. Patrick.