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Signals from a suspected icequake that occurred on Yellowstone Lake recorded at Yellowstone Seismic Network stations YLA on Lake Butte (top) and YTP at The Promontory (bottom 3 plots). Plot shows about 2 minutes of data from January 24, 2022, starting at about 7:43:34 p.m. MST. YLA waveform (YLA EHZ) was recorded on a vertical short-period sensor.
Signals from a suspected icequake that occurred on Yellowstone Lake recorded at Yellowstone Seismic Network stations YLA on Lake Butte (top) and YTP at The Promontory (bottom 3 plots). Plot shows about 2 minutes of data from January 24, 2022, starting at about 7:43:34 p.m. MST. YLA waveform (YLA EHZ) was recorded on a vertical short-period sensor.
Signals recorded at station YDD in Yellowstone National Park from the 2022 Hunga Tonga–Hunga Haʻapai volcanic eruption. The seismometer at YDD recorded both the direct seismic phase (top left) as well as the atmospheric Lamb Wave that coupled to the ground as it propagated (top right). The infrasound microphone at YDD recorded the atmospheric disturbance
Signals recorded at station YDD in Yellowstone National Park from the 2022 Hunga Tonga–Hunga Haʻapai volcanic eruption. The seismometer at YDD recorded both the direct seismic phase (top left) as well as the atmospheric Lamb Wave that coupled to the ground as it propagated (top right). The infrasound microphone at YDD recorded the atmospheric disturbance
Signals recorded at station YDD in Yellowstone National Park from the 2022 Hunga Tonga–Hunga Haʻapai volcanic eruption. The seismometer at YDD recorded both the direct seismic phase (top left) as well as the atmospheric Lamb Wave that coupled to the ground as it propagated (top right). The infrasound microphone at YDD recorded the atmospheric disturbance
Signals recorded at station YDD in Yellowstone National Park from the 2022 Hunga Tonga–Hunga Haʻapai volcanic eruption. The seismometer at YDD recorded both the direct seismic phase (top left) as well as the atmospheric Lamb Wave that coupled to the ground as it propagated (top right). The infrasound microphone at YDD recorded the atmospheric disturbance
An ecological site group map for the Upper Colorado River Basin that displays a quantitative soil-geomorphic framework in the Four Corners region, USA.
An ecological site group map for the Upper Colorado River Basin that displays a quantitative soil-geomorphic framework in the Four Corners region, USA.
Map of seismicity (red circles) in the Yellowstone region during 2021. Gray lines are roads, black dashed line shows the caldera boundary, Yellowstone National Park is outlined by black dot-dashed line, and gray dashed lines denote state boundaries.
Map of seismicity (red circles) in the Yellowstone region during 2021. Gray lines are roads, black dashed line shows the caldera boundary, Yellowstone National Park is outlined by black dot-dashed line, and gray dashed lines denote state boundaries.
Simplified geologic maps showing the difference in mapped rock units from the current, large-scale geologic maps dividing Mount Everts and that join along the boundary between Montana and Wyoming.
Simplified geologic maps showing the difference in mapped rock units from the current, large-scale geologic maps dividing Mount Everts and that join along the boundary between Montana and Wyoming.
Map of the Uhl Hill fault in eastern Grand Teton National Park. Base map is a 1-meter lidar hillshade. Black arrows mark the visible fault scarp, and red lines mark locations where scarp profiles were generated from lidar data or field surveying.
Map of the Uhl Hill fault in eastern Grand Teton National Park. Base map is a 1-meter lidar hillshade. Black arrows mark the visible fault scarp, and red lines mark locations where scarp profiles were generated from lidar data or field surveying.
On the left is Castle Geyser during an eruption with a pool from nearby Tortoise Shell Spring showing photosynthetic pigments at the bottom. The middle image is of a small pool in the Geyser Hill Group in the Upper Geyser Basin with an outflow channel full of yellow, green, orange, red, and brown pigmented phototrophic microbial mats.
On the left is Castle Geyser during an eruption with a pool from nearby Tortoise Shell Spring showing photosynthetic pigments at the bottom. The middle image is of a small pool in the Geyser Hill Group in the Upper Geyser Basin with an outflow channel full of yellow, green, orange, red, and brown pigmented phototrophic microbial mats.
Boiling River near Mammoth Hot Springs, Yellowstone National Park. Photo by R. Robinson.
Boiling River near Mammoth Hot Springs, Yellowstone National Park. Photo by R. Robinson.
Left photo shows a loose piece of siliceous sinter that was precipitated around a photosynthetic microbial mat in the Lower Geyser Basin. The microbial mat died when the outflow channel changed positions.
Left photo shows a loose piece of siliceous sinter that was precipitated around a photosynthetic microbial mat in the Lower Geyser Basin. The microbial mat died when the outflow channel changed positions.
Scarp of the Uhl Hill fault. Photo (top) is looking west at the east-facing fault scarp, with a geologist at the top of the scarp for scale. Here, the fault cuts through Pinedale-1 glacial deposits just south of a Pinedale-2 end moraine. Plot (bottom) is a scarp profile generated from lidar elevation data.
Scarp of the Uhl Hill fault. Photo (top) is looking west at the east-facing fault scarp, with a geologist at the top of the scarp for scale. Here, the fault cuts through Pinedale-1 glacial deposits just south of a Pinedale-2 end moraine. Plot (bottom) is a scarp profile generated from lidar elevation data.
Logs and debris removed from Solitary Geyser, near Old Faithful, during remediation work in 2021. Photo by Jeff Cross.
Logs and debris removed from Solitary Geyser, near Old Faithful, during remediation work in 2021. Photo by Jeff Cross.
A view of White Mountain -- a deposit of the Heart Mountain detachment -- from the Sunlight Basin Road in Wyoming. Much of the evidence supporting the lamprophyre diatreme triggering mechanism theory for the landslide was gathered at White Mountain.
A view of White Mountain -- a deposit of the Heart Mountain detachment -- from the Sunlight Basin Road in Wyoming. Much of the evidence supporting the lamprophyre diatreme triggering mechanism theory for the landslide was gathered at White Mountain.
Yellowstone Lake bathymetry showing the location of the Deep Hole vent field. Inset shows locations of heat-flux measurements (red dots) in the Deep Hole vent field.
Yellowstone Lake bathymetry showing the location of the Deep Hole vent field. Inset shows locations of heat-flux measurements (red dots) in the Deep Hole vent field.
Research Vessel Annie and Remotely Operated Vehicle Yogi. a) R/V Annie on Yellowstone Lake operated by the Global Foundation for Ocean Exploration. Image Rob Harris, OSU. b) ROV Yogi with GFOE President Dave Lovalvo. Image Todd Gregory, GFOE. C) ROV Yogi and 1-m heat flow probe. This pr
Research Vessel Annie and Remotely Operated Vehicle Yogi. a) R/V Annie on Yellowstone Lake operated by the Global Foundation for Ocean Exploration. Image Rob Harris, OSU. b) ROV Yogi with GFOE President Dave Lovalvo. Image Todd Gregory, GFOE. C) ROV Yogi and 1-m heat flow probe. This pr
Site of the former Fountain Hotel in Yellowstone National Park. Red arrows indicate the location of the pipe that ran through the meadow between Leather Pool and the site of the Fountain Hotel (yellow arrow). Yellowstone National Park photo by Annie Carlson, October 2021.
Site of the former Fountain Hotel in Yellowstone National Park. Red arrows indicate the location of the pipe that ran through the meadow between Leather Pool and the site of the Fountain Hotel (yellow arrow). Yellowstone National Park photo by Annie Carlson, October 2021.
Wading across Salt River at Etna, streamgage 13027500, to collect samples
Wading across Salt River at Etna, streamgage 13027500, to collect samples
Interferogram created from data collected on September 22, 2020, and September 17, 2021, by the Sentinel-1 satellite system. Colored fringes indicate a change in distance (called range change) between the satellite and ground surface that is caused by surface deformation.
Interferogram created from data collected on September 22, 2020, and September 17, 2021, by the Sentinel-1 satellite system. Colored fringes indicate a change in distance (called range change) between the satellite and ground surface that is caused by surface deformation.
“Hey Bear” volcano, Wyoming, with Raggedtop Mountain in the background. Hey Bear volcano is a small scoria cone that is about 1.3 million years old and that erupted over Eocene (~50 million-year-old) rocks (noted by yellow dotted line). Photo by Matthew Brueseke, Kansas State University, August 2021, used with permission.
“Hey Bear” volcano, Wyoming, with Raggedtop Mountain in the background. Hey Bear volcano is a small scoria cone that is about 1.3 million years old and that erupted over Eocene (~50 million-year-old) rocks (noted by yellow dotted line). Photo by Matthew Brueseke, Kansas State University, August 2021, used with permission.
Photograph of Twin Buttes in Lower Geyser Basin looking to the northwest, with Excelsior Geyser of Midway Geyser Basin in the foreground. Twin Buttes is a thermal kame that formed when glaciers covered the area, and hydrothermal activity below the ice led to melting and the deposition and cementation of glacial sediments.
Photograph of Twin Buttes in Lower Geyser Basin looking to the northwest, with Excelsior Geyser of Midway Geyser Basin in the foreground. Twin Buttes is a thermal kame that formed when glaciers covered the area, and hydrothermal activity below the ice led to melting and the deposition and cementation of glacial sediments.
Muddy Creek near Dad streamgage, zero flow