Images

Scientists heading out to deploy sensors for sediment nutrient storage and release.

USGS scientist, Katy O'Donnell, monitoring instruments onboard a high-speed mapping boat. 

While hiking along the rim of the 2018 collapse area at the summit of Kīlauea, HVO scientists visited a site to the southeast of Halema‘uma‘u known as Akanikōlea—a culturally-significant place that is featured in Hawaiian legends.

HVO scientists hiked along the closed Crater Rim Road on April 30th to retrieve acoustic (sound) sensors for a scientific study. This section of the road was damaged by earthquake activity during the 2018 Kīlauea summit caldera collapse. This stretch of road traverses part of the September 1982 lava flow, visible as a lobe of black rock on the right of the road.

This rock is covered with invertebrate animals over nearly the entire surface including orange and purple sea stars, green anemones spotted with shell debris of other animals, and black mussels.

Large Array of Laboratory Glassware, USGS - NMWSC

Technician Kathryn Cahalane using an analytical balance to measure resin for SPATT production. 

Thermo Scientific Muffle Furnace, USGS - NMWSC

Tsunami Evacuation Route Sign

https://www.usgs.gov/science-explorer-results?es=tsunamis 

Tsunami Evacuation Route Sign

https://www.usgs.gov/science-explorer-results?es=tsunamis 

Tsunami Hazard Zone Sign

https://www.usgs.gov/science-explorer-results?es=tsunamis 

The lava lake in Halema‘uma‘u crater, at the summit of Kīlauea, remains active, as seen in this view looking north. Active surface lava is limited to the western (left) portion of the lake between the main island and the western fissure complex.

A close-up view of the west vent spatter cones (bottom left) and inlet where lava is entering the lava lake (center right) in Halema‘uma‘u Crater at the summit of Kīlauea Volcano. A piece of crust, that solidified near the inlet, broke off and was being transported away from the inlet. This photograph was taken on April 26, 2021, at 1:51 p.m.

On Monday, April 26, 2021, lava continued to flow from the western vent (bottom left) into the active lava lake (center) in Halema‘uma‘u Crater at the summit of Kīlauea Volcano. The active lava lake surface continues to shrink as areas on the north (upper left) and south (center right) sides cool and solidify. This photograph was taken at 1:03 p.m.

This Landsat 8 Collection 2 image was acquired over the Richat Structure near the western edge of the Sahara Desert on April 25, 2020 and is shown as a natural color composite using the red, green, and blue bands (Bands 4,3,2).

This zoomed-in photo of the far southwest end of the active lava lake within Halema‘uma‘u at Kīlauea's summit was captured on Thursday, April 22, and it illustrates the process by which parts of the lava lake become inactive.

This map of Halema‘uma‘u at the summit of Kīlauea shows 20 m (66 ft) contour lines (dark gray) that mark locations of equal elevation above sea level (asl). The map shows that the lava lake has filled 228 m (748 ft) of the crater, to an elevation of 745 m (2444 ft) asl since the eruption began on December 20, 2020.

Delta wetland near Rio Vista, California.

On Thursday, April 22, HVO scientists observed the ongoing eruption at the Kīlauea summit from the south rim of Halema‘uma‘u. This photo shows the active western portion of the lava lake, which appears to be in the process of shrinking again, with its northeast (upper-right) and southwest (lower-left) ends crusting over substantially.

Map of Yellowstone National Park showing the location of major travertine deposits. The green dashed line is the outline of Yellowstone Caldera and red lines are major paved roads.

Photographs of travertine in Yellowstone. A) Travertine terraces actively forming at Mammoth Hot Springs.