Images

A helicopter overflight on May 10, 2022, allowed for aerial visual and thermal imagery to be collected of Halema‘uma‘u crater at the summit of Kīlauea. The active lake surface is limited to the western portion of the crater.

A telephoto image of the west vent (lower right) and active lava lake in Halema‘uma‘u, the crater within Kīlauea volcano's summit caldera. Spattering lava is visible around the eastern (top) and southern (upper right) lake margins. The lava lake is approximately 168 m (551 ft) east-west (top to bottom), and 60 m (197 ft) north-south (left to right).

An overflight at approximately 10 a.m. on May 10, 2022, provided aerial views of the eruption within Halema‘uma‘u crater. Lava continues to erupt from the west vent area, supplying an active lava pond in the western portion of Halema‘uma‘u within Kīlauea summit caldera. USGS photograph by K. Mulliken. 

A helicopter overflight on May 10, 2022, allowed for aerial visual and thermal imagery to be collected of Halema‘uma‘u crater at the summit of Kīlauea. The active lake surface is limited to the western portion of the crater.

A view of the lava lake within Halema‘uma‘u at the summit of Kīlauea taken from the south, looking north. An orange glow can be seen in the active part of the lava lake. The dark gray area at the bottom of the photo is a lava flow from September 1982. The dark tan exposure to the north of the 1982 flow is the Keanakāko‘i Ash (ca. 1500–1820 CE).

A wide view of Halema‘uma‘u crater, at the summit of Kīlauea, looking east. Volcanic gas emission rates remain elevated, with sulfur dioxide measured at about 2,800 tonnes per day on May 12. Volcanic gasses are emitted from the west vent complex, the active lava lake, and from other cracks around the crater floor. USGS photo taken by L.

Photo of helicopter with loop suspended under it flying over Yellowstone National Park.

A) Top left, photo of Halemaʻumaʻu before the 2018 collapse events started with the decade-long active lava lake that formed in 2008. B) Top right, photo after the 2018 collapse events had dropped the crater floor of Halemaʻumaʻu by more than 1,600 ft (500 m) over the course of just 4 months.

Close-up oblique views of Mount Rainier’s west side showing simulated lahar flow depths from a landslide originating in the area of the Tahoma Glacier Headwall (T-260-HM simulation). Imagery appears blurry where lahar material is absent because D-Claw’s adaptive mesh refinement (AMR) employs very coarse resolution in those areas.

The eruption continues within Halema‘uma‘u at the summit of KILUAEA on April 26, 2022. The active lava lake is visible within the middle right of the photo and has a silvery surface appearance. Within the active lava lake, lava flows from an inlet on the west (bottom) margin towards the east.

Telephoto view looking east of the southeast embayment of the active lava lake within Halema‘uma‘u, Kīlauea, on April 26 2022. In this photo, lava from the active lava lake (silvery grey surface in lower left quadrant of photo) cascades into the southeast embayment (red surface).

 Telephoto view looking east of the active lava lake within Halema‘uma‘u at the summit of Kīlauea. The western vent complex is located at the bottom of the photo; incandescence is visible near the top of within the tallest cone on the right bottom of the photograph. USGS photo by N. Deligne. 

Kruzof Island with Mount Edgecumbe and Crater Ridge labeled. Cumulative displacement measured in the line of sight (LOS) of Sentinel 1 radar satellites from Nov 2014-Dec 2021 (positive LOS displacement means uplift and horizontal motion toward the satellite).

Map showing earthquake epicenters near Sitka Alaska from 1990 through 2022 using data from earthquake.usgs.gov. Epicenters before 2010 are shown as black circles, and from 2010 to the present they are color-coded by date (see legend for timeline). Inset shows epicenters at Kruzof Island for the same time period.

a) Haleakalā Silversword growing on the edge of Haleakalā Crater (approximately 410–530 years post-eruption). Photo by Paul Krushelnycky. b) Fireweed growing on the slopes of Mount St. Helens (five years post-eruption). Photo by Lyn Topinka. c) A blooming ‘ōhi‘a tree growing on what used to be the Kīlauea Iki lava lake (56 years post-eruption).

Eruptive activity continues within Halema‘uma‘u crater at the summit of Kīlauea on April 15, 2022. Since the beginning of this eruption on September 29, 2021, the crater floor has seen a total rise of about 99 meters (325 feet).

A view of the west vent cone complex within Halema‘uma‘u crater at the summit of Kīlauea, with two areas of orange glow visible. The photo was taken at 12:16 pm HST on April 15, 2022, from the western rim of Halema‘uma‘u. USGS photo by J.M. Chang.

A close-up view of lava spattering along the eastern side of the active lava lake within Halema‘uma‘u crater at the summit of Kīlauea on April 15, 2022. USGS photo taken by J.M. Chang from the western rim of Halema‘uma‘u.

A geologist examines a two-meter-thick (7 feet) tephra outcrop on the southeast flank of Mauna Loa. USGS photo by J.M. Chang.

During a gravity survey, HVO scientists measure the relative strength of gravity (using a gravimeter, one of the small light-colored boxes in the center of the photo) between benchmarks.

Over several weeks in April, USGS Hawaiian Volcano Observatory scientists, along with visiting scientist from other volcano observatories, conducted ​the annual Kīlauea microgravity survey.