Images

The lead electronics technician at the Hawaiian Volcano Observatory checks that the new HLcam is transmitting. The HLcam is located on the southeast side of Hualālai and provides views of the northwest flank of Mauna Loa.

Hawaiian Volcano Observatory technicians upgraded the Hualālai repeater station to lithium batteries, despite the chilly temperatures on Hualālai. USGS image by M. Warren.

During the week of April 10, Hawaiian Volcano Observatory technicians upgraded the Hualālai repeater site, which is an important telemetry hub for volcano monitoring data. The site is located on the southeast side of Hualālai, at an elevation of 2,160 meters (7,090 feet) above sea level.

The Hawaiian Volcano Observatory technician team did maintenance on the Hualālai repeater station during the week of April 10, 2023. This photo shows the team walking towards the site, which is an important telemetry hub for Hawaiian Volcano Observatory volcano monitoring data. Mauna Kea and Mauna Loa are visible in the background. USGS image by M. Warren.

A Hawaiian Volcano Observatory technician replaces batteries on the Hualālai repeater station. The station, which relays monitoring signals from nearby stations back the observatory, is powered by batteries that store energy generated by solar panels. USGS image by M. Warren.

A Hawaiian Volcano Observatory technician removes the electronics board on the Hualālai repeater station. The electronics board for the station was replaced with a 48-volt system electronics board as part of a station upgrade. USGS image by C. Parcheta.

A Hawaiian Volcano Observatory scientist drills holes to install a new electronics box for the Hualālai repeater station upgrade. USGS image by M. Warren.

During station maintenance at the Hualālai repeater, Hawaiian Volcano Observatory technicians installed a new webcam, the HLcam. This camera is located on Hualālai and provides view of Mauna Loa's northwest flank.

Hawaiian Volcano Observatory technicians work on installing a new electronics box on the Hualālai repeater station as part of a station upgrade in April 2023. USGS image by M. Warren.

Hawaiian Volcano Observatory technicians install new lithium batteries at the Hualālai repeater station. The station is located at an elevation of 2,160 meters (7,090 feet), on the southeast side of Hualālai. USGS image by M. Warren.

The Kīlauea summit eruption has been paused since Tuesday, March 7, 2023, and this reference map depicts the Halema‘uma‘u crater floor in its present noneruptive state. The eruption statistics provided here reflect activity up until the pause, since they are derived from measurements taken during a HVO helicopter overflight on Friday, March 10.

Eruptive activity was paused during the Friday, March 10, overflight of Halema‘uma‘u, at Kīlauea summit. Numerous outgassing sites were present on the crater floor, but not active lava was present on the surface. USGS photo by M. Patrick.

A helicopter overflight on March 10, 2023, allowed for aerial visual and thermal imagery to be collected of Halema‘uma‘u crater at the summit of Kīlauea. No active lava was present in the crater, with only scattered warm spots on the crater floor.

A helicopter overflight on March 10, 2023, allowed for aerial visual and thermal imagery to be collected of Halema‘uma‘u crater at the summit of Kīlauea. No active lava was present in the crater, with only scattered warm spots on the crater floor.

An aerial photo looking north shows the December 2020 island and eastern vent area within Halema‘uma‘u crater. For the first time, conditions allowed Hawaiian Volcano Observatory geologists to visit the island. The crew can be seen in orange, working on the northwestern edge of the island. USGS photo by J. Schmith.

An aerial view looking down into the frozen pool basin south of the western lava lake in Halema‘uma‘u crater at the summit of Kīlauea. Spatter deposits can be seen all around the pool basin. The circular feature within the pool is the remains of a small, perched pond in the northern part of the pool basin. USGS photo by J. Schmith.

Aerial image taken at approximately 9 a.m. HST on March 10 during an overflight of Halema‘uma‘u crater at Kīlauea summit. The wind blew steam east, which allowed Hawaiian Volcano Observatory geologists to take a closer look at the features of the western end of the crater floor. This low-angle view was taken from the western end of the crater and looks east.

On March 10, 2023, geologists from the Hawaiian Volcano Observatory visited the main island that was created during the first hours of the December 2020 eruption.

Aerial view looking northwest across the eastern part of the western pond basin within Halema‘uma‘u crater; the northern part of the southern pool basin is also visible. In the background, Hawaiian Volcano Observatory geologists are working on the main island that formed in December 2020. USGS photo by J. Schmith.

A low-angle aerial view showing the steep walls of the western basin within Halema‘uma‘u crater at the summit of Kīlauea. In the background, a Hawaiian Volcano Observatory geologist is working on the island that formed in the December 2020 eruption. USGS photo by J. Schmith.

Close-up view of the pebbly, rubbly, and sandy texture of the tephra that formed in December 2020 when lava interacted with the water lake that was present at the base of Halema‘uma‘u crater at the time. Some of this tephra formed the island that then floated around the lava lake, and which is still present today. USGS photo by D. Downs.