Multimedia Gallery

HVO scientists walk transects along the down-dropped portion of Kīlauea caldera floor as part of a gas survey conducted on July 22. The multigas instruments carried on the scientists' backs measure the amount of carbon dioxide (CO₂), sulfur dioxide (SO₂), water vapor (H₂O), and hydrogen sulfide (H₂S) via an inlet hose oriented

On July 22, HVO scientists surveyed the floor of the down-dropped block within Kīlauea caldera for ​diffuse volcanic gas emissions. This particular part of the caldera floor subsided during Kīlauea's collapse events in 2018. The caldera-wide ongoing gas survey will be compared to gas surveys done in the area prior to the 2018 collapse events and will reveal any changes in

This wide-angle aerial view looks southeast over Kīlauea's summit caldera, with the recently active lava lake in Halema‘uma‘u visible in the lower right. On the left side of the photo, the large cliffs formed during the 2018 collapses are visible. Kīlauea Iki can be seen in the upper left. USGS photo by M. Patrick, taken on July 22, 2021.

This aerial photo of the inactive lava lake within Halema‘uma‘u at the summit of Kīlauea was captured during a routine helicopter overflight by HVO geologists on Thursday, July 22, 2021. Here, the lava lake is viewed from the northeast, with the oldest parts of the lake surface—the first to crust over—visible on the near side, and the most recently active areas in the far

An HVO geologist conducts a routine high-precision survey of the inactive lava lake in Halema‘uma‘u, at the summit of Kīlauea volcano. Mist moving across the caldera on the morning of July 22 produced a rainbow over the lake. No significant changes have occurred in Halema‘uma‘u in recent weeks. USGS photo by M. Patrick.

Celebrating Page Valentine's 5000th sample collected on Stellwagen Bank National Marine Sanctuary. Page Valentine, USGS Research Geologist, collects his 5000th sample on Stellwagen Bank National

Page Valentine, USGS Research Geologist, collects his 5000th sample on Stellwagen Bank National Marine Sanctuary.  Page has been mapping the geologic substrates of Stellwagen Bank and 

A sailboat is removed from the Great Salt Lake Marina due to low lake levels. 

USGS hydrologic technician Travis Gibson confirms Great Salt Lake water levels at the SaltAire gauge.

Distribution of Chronic Wasting Disease in North America, updated July 19, 2021

This close-up view of the western fissure within Halema‘uma‘u at the summit of Kīlauea was captured on Friday, July 16, 2021. HVO scientists were making a routine observational visit to the crater rim; no changes to the inactive lava lake were detected. For scale, the top of the fissure complex was measured to be standing approximately 20 m (66 ft) above the surrounding

The Mojave River is the largest of the streams and rivers that flow through southwestern San Bernardino County, CA. It extends more than 100 miles east from its source in the San Bernardino Mountains to the end east of Afton Canyon. This 3D animation takes the viewer on a tour of the entire length of the river.

Scanning electron microscope image of elongate amphiboles, some of which are asbestiform, collected from attic insulation from Libby, Montana. 

Marcus G. Langseth departs Newport, Oregon (Yaquina Bay) for Cascadia Project OBS Deployment Leg

Geologic block-diagram and conceptual model of possible flow systems associated with thermal areas at Mammoth Hot Spring (MHS) area from Sorey (1991) (USGS Water-Resources Investigations Report 91-4052).  Also shown are the Bear Creek Hot Springs (BC) and La Duke Hot Spring (LD). Arrows indicate general

A Hawaiian Volcano Observatory geologist uses a laser rangefinder to survey points across the solidified lava lake surface in Halema‘uma‘u, at the summit of Kīlauea. No significant changes in lake surface elevation have been observed in recent weeks. USGS photo by M. Patrick taken on July 9, 2021.

Decreasing water levels in the southern arm of the Great Salt Lake expose microbialite communities that are normally underwater.  

Invasive Species - Lizards, Treesnakes, and Burmese Pythons, Oh My! 

By Amy A. Yackel Adams and Andrea F. Currylow 

USGS Research Ecologists, Fort Collins Science Center

• Relocation of species from their home ecoregions can wreak havoc in novel habitats
• Invasive reptiles around the world

Relative risk maps of combined Bsal risk, comparing (a) pre-action risk (2010–2015), to (b) risk after implementation of surveillance and of importation restrictions on over 200 salamander species. Relative risk scores were scaled to 2010–2015. (c) Change in relative risk score per county as proportion of pre-action risk. Each point is a county, colored by its risk score

A view looking north into Halema‘uma‘u on July 2, 2021. Although eruptive activity has paused at the summit of Kīlauea, HVO geologists still monitor the lava lake and summit area regularly. Lava lake surface depths remain the same over the past few weeks. The field crew on July 2 heard two rockfalls originating slightly east (right) of the field of view from the Halema‘uma

The USGS Active Groundwater Level Network includes about 20,000 wells that have been measured by the USGS or USGS cooperators at least once within the past 13 months. The animation shows snapshots of  daily water-level statistics in the network for June 2021. (Note: Due to technical issues, data from some sites

Photomicrograph from a raccoon (Procyon lotor) found sick and euthanized in Texas, US.  (A) A cluster of schistosome ova are present in the pancreas. Ova are thin-shelled and are not operculated. Each viable egg contains a miracidium (arrows). The ova are surrounded by infiltrates of eosinophils, macrophages, and lymphocytes. H&E stain. (B) Adult schistosomes

High resolution mass spectrometer at the USGS Eastern Ecological Science Center.   Any display of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

USGS scientist standing near the high resolution mass spectrometer at the UlS. Geological Survey Eastern Ecological Science Center. The instrument will be used for analyses of PFAS in plasma and tissue samples. Any display of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

At left, a map of select recent volcanoes and volcanic areas in Canada (volcano location data from: Global GIS: volcanoes of the world; volcano basic data. [Shapefile]. American Geological Institute. Retrieved from https://earthworks.stanford.edu/catalog/harvard-glb-volc). Right top, Eve Cone, a cinder

Photo Contest Winner | June 2021 | Honorable Mention
Jin-Si Over and Jen Cramer from WHCMSC are trained to become new DOI pilots in Rifle, CO

View from the Adirondack Mountains summer 2021

This bird was found in the Washington, D.C. metro region with swollen eyes and crusty discharge, a sign observed on most birds affected by a May/June 2021 mortality event in the area.

Image of a tidally restricted wetland in the Herring River Estuary, Cape Cod, MA

Blue-tinged gases are seen above the lava lake in Halema‘uma‘u crater in this image taken from the southwest rim on June 25, 2021, at 12:37 p.m. HST. Although eruptive activity has paused at the summit of Kīlauea, sulfur dioxide-rich gases can still be seen emanating from the lava lake, primarily along the northern margin but also at the west vent and along the southern

LSPIV Install on the Hudson River, New York

This image is from a research camera positioned on Mauna Kea. The camera looks south toward the summit and Northeast Rift Zone of Mauna Loa.

USGS Cascades Volcano Observatory Physical Science Technician Brian Meyers installs a data telemetry antenna on a volcano monitoring station at Mount St. Helens. A DOAS scanner is mounted above the flat-panel antenna at the top of the mast. A fiber optic cables transmits the light collected by the DOAS scanner to a spectrometer inside the fiberglass hut. Data is

Last 24 Hours - Live Image of Mauna Loa's Summit and Northeast Rift Zone from Mauna Kea [MKcam].

Disclaimer: The webcams are operational 24/7 and faithfully record the dark of night if there are no sources of incandescence or other lights. Thermal webcams record heat rather than light and get better views through volcanic gas. At times, clouds and rain obscure

A view of Halema‘uma‘u on June 11, 2021, at 12:20 p.m. HST. Although eruptive activity has paused at the Kīlauea summit, HVO geologists still monitor the lava lake and summit area regularly. They make observations to note any physical changes in the landscape or visual changes in gas emissions. Field crews also look and listen for rockfalls and measure the depth of the

Bailey's Beach - Newport, Rhode Island

Upper map shows the flow path of hot spring water from the Old Faithful area through the Firehole, Madison, Missouri and Mississippi Rivers to the Gulf of Mexico. Lower map shows the flow path of hot spring water from south of the continental divide through the Lewis, Snake and Columbia Rivers to the Pacific Ocean. Maps were generated with the

Map of Yellowstone National Park showing the major rivers and the continental divide (red dashed). Yellowstone Caldera is oulined by purple dashed line. Water flowing south and west of the divide ends up in the Pacific Ocean, whereas water north and east of the divide ends up in the Gulf of Mexico. Isa Lake is located on the continental divide, and water from the lake

Comparison of Porkchop Geyser in September 1984 (left) and August 1986 (right).  The Geyser entered a period of near-constant eruption in 1985, and the pool disappeared; it exploded on September 5, 1989.

A collage of images taken by UGS-GLSC employees during the 2020 field season.

View downstream from the bridge at USGS site 07241520, North Canadian River at Britton Rd at Oklahoma City, OK

I Am A...Wildlife Biologist coloring page

A view of the crusted over lava lake within Halema‘uma‘u at Kīlauea summit, taken during a helicopter overflight on June 8, 2021. No incandescence (red lava) has been visible on the solidified lava lake surface for over two weeks. Light degassing continues in a few areas around the margin of the lava lake, mainly along the north crater wall (bottom left). USGS photo taken

On June 8, 2021, the USGS Hawaiian Volcano Observatory conducted a routine helicopter overflight and fieldwork at the summit of Kīlauea. Here, a geophysicist returns to the helicopter after making Global Positioning Systems (GPS) measurements. These surveys measure small changes in the ground surface caused by subsurface magma movement. This scientist carries a GPS antenna

Portions of Crater Rim Drive, which was damaged during the 2018 Kīlauea summit collapse, are visible from the south rim of Halema‘uma‘u. The lava lake within Halema‘uma‘u and the east wall of Halema‘uma‘u crater are visible in the background. This area of Hawai‘i Volcanoes National Park remains closed to the public due to hazardous conditions. With permission from the

No eruptive activity or major changes were observed during a USGS Hawaiian Volcano Observatory Kīlauea summit monitoring shift on June 8, 2021. An area near the north wall of Halema‘uma‘u continues to visibly emit gases, though the eruption has paused. The most recent sulfur dioxide emission rate, measured on June 4, remains slightly elevated at 54 tonnes per day. USGS

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