Images

Steamboat Geyser in the water-phase of an eruption on June 4, 2018, Norris Geyser Basin, Yellowstone National Park.

Steamboat Geyser in the steam-phase of an eruption on June 4, 2018, Norris Geyser Basin, Yellowstone National Park.

Video from helicopter overflight of Kīlauea Volcano's lower East Rift Zone on June 4, 2018, shows lava from fissure 8 entering the ocean at Kapoho Bay. View to the north.

A pair of video cameras overlook the coast along a beach on Whidbey Island, Island County at the northern boundary of Puget Sound in western Washington. View looks west out into the Strait of Juan de Fuca.

Displays showing themultibeam-sonar data acquisition and the navigation system aboard the R/V Petrel during the geophysical survey in May 2018.

Subbottom profiler system towed on pontoons behind the R/V Petrel during the geophysical survey in May 2018

This thermal map shows the fissure system and lava flows as of 5:30 pm on Friday, June 1. The flow from Fissure 8 continues to advance in a northeast direction and the front was roughly 9.5 km (5.9 miles) from the vent at Fissure 8. The black and white area is the extent of the thermal map.

This thermal map shows the fissure system and lava flows as of 6:45 am on Saturday, June 2. The flow from Fissure 8 continues to advance in a northeast direction and the front was roughly 10.1 km (6.3 miles) from the vent at Fissure 8. The black and white area is the extent of the thermal map.

This animated GIF shows a sequence of radar amplitude images that were acquired by the Italian Space Agency's Cosmo-SkyMed satellite system. The images illustrate changes to the caldera area of Kīlauea Volcano that occurred between May 5 and June 2 at 6:00 p.m. HST.

Map as of 11:00 a.m. HST, June 3, 2018. Given the dynamic nature of Kīlauea's lower East Rift Zone eruption, with changing vent locations, fissures starting and stopping, and varying rates of lava effusion, map details shown here are accurate as of the date/time noted. Shaded purple areas indicate lava flows erupted in 1840, 1955, 1960, and 2014-2015.

Photo from 7AM helicopter overflight, hovering offshore and looking up the flowfront. Nearly all of the front was active and advancing; advance rates were estimated at an average of 250 feet/hour (76 m/hr), and as of 7AM the flow was 500 yards (457 m) from the ocean.

Overflight photo at 7AM HST from offshore looking up the flowfront. Nearly all of the front was active and advancing/spreading.

Summit plume at 8:40AM HST on June 3. A slight mist in the air softens the look of the plume, which is predominantly white steam with very minor amounts of ash.

Large hydrothermal explosion craters shown with black dot and leader plus associated breccia deposits in Yellowstone National Park (locations from

This animated GIF shows a sequence of radar amplitude images that were acquired by the Italian Space Agency's Cosmo-SkyMed satellite system. The images illustrate changes to the caldera area of Kīlauea Volcano that occurred between May 5 and June 2 at 6:00 p.m. HST.

The Coastal Sediment Availability and Flux project conducts research and monitoring of sediment movement and coastal change at several barrier islands around the U.S.

Map as of 1:30 p.m. HST, June 2, 2018. Given the dynamic nature of Kīlauea's lower East Rift Zone eruption, with changing vent locations, fissures starting and stopping, and varying rates of lava effusion, map details shown here are accurate as of the date/time noted. Shaded purple areas indicate lava flows erupted in 1840, 1955, 1960, and 2014-2015.

Overnight (June 1-2), fissure 8 lava fountains decreased to heights of about 50 m (164 feet). The moon can be seen in the upper left.

An HVO geologist documents the fissure 8 flow southeast of Four Corners (the intersection of Highways 132 and 137).

USGS scientists on HVO's overflight this morning (June 2) captured this image of the fissure 8 flow front as it advanced west along Highway 132. Around the time of this photo, 7:15 a.m.

USGS scientists on HVO's overflight this morning (June 2) captured this image of the fissure 8 flow front as it advanced west along Highway 132. Around the time of this photo, 7:15 a.m.