HVO geologists observed the new eruption within Kīlauea summit caldera during an eruption-monitoring overflight the morning of September 11, 2023. Multiple minor fountains remain active in the eastern portion of Halema‘uma‘u crater floor and on the downdropped block within Kīlauea's summit caldera.
Images
HVO geologists observed the new eruption within Kīlauea summit caldera during an eruption-monitoring overflight the morning of September 11, 2023. Multiple minor fountains remain active in the eastern portion of Halema‘uma‘u crater floor and on the downdropped block within Kīlauea's summit caldera.
![GPS data from station P716, near Canyon Village, spanning 2005–2023](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/P716_timeseries.png?itok=iYGvwJaA)
GPS data from station P716, near Canyon Village, spanning 2005–2023. Top plot shows motion in a north-south direction (positive change is north), middle is east-west motion (positive change is east), and bottom plot is up-down motion (positive change is up).
GPS data from station P716, near Canyon Village, spanning 2005–2023. Top plot shows motion in a north-south direction (positive change is north), middle is east-west motion (positive change is east), and bottom plot is up-down motion (positive change is up).
![Section of sediment core from Rush Lake, Lower Geyser Basin, Yellowstone National Park, showing different layers that accumulated over time](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/fig3_corelamina_rush.jpg?itok=aegbmgm4)
Section of sediment core from Rush Lake, Lower Geyser Basin, Yellowstone National Park, showing different layers that accumulated over time
linkSection of a sediment core from Rush Lake, Lower Geyser Basin, Yellowstone National Park.
Section of sediment core from Rush Lake, Lower Geyser Basin, Yellowstone National Park, showing different layers that accumulated over time
linkSection of a sediment core from Rush Lake, Lower Geyser Basin, Yellowstone National Park.
View to the southwest of the eastern front of the Gallatin Range from Gardners Hole. The East Gallatin-Reese Creek fault system runs along the base of the range at the prominent break-in-slope in the trees. Photo by James Mauch, Wyoming State Geological Survey, on August 29, 2023.
View to the southwest of the eastern front of the Gallatin Range from Gardners Hole. The East Gallatin-Reese Creek fault system runs along the base of the range at the prominent break-in-slope in the trees. Photo by James Mauch, Wyoming State Geological Survey, on August 29, 2023.
![A portion of organic-rich lake mud recovered from Rush Lake, Lower Geyser Basin, Yellowstone National Park](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/fig2_coring_rush.jpg?itok=JJ6Y1ygW)
A portion of organic-rich lake mud recovered from Rush Lake, Lower Geyser Basin, Yellowstone National Park
linkA portion of organic-rich lake mud recovered from Rush Lake, in the Lower Geyser Basin of Yellowstone National Park. Younger sediments are to the left and older sediments are to the right. The researcher is pointing to a thin, white layer—the Mazama ash, produced during the eruption 7600 years ago that formed Crater Lake in Oregon.
A portion of organic-rich lake mud recovered from Rush Lake, Lower Geyser Basin, Yellowstone National Park
linkA portion of organic-rich lake mud recovered from Rush Lake, in the Lower Geyser Basin of Yellowstone National Park. Younger sediments are to the left and older sediments are to the right. The researcher is pointing to a thin, white layer—the Mazama ash, produced during the eruption 7600 years ago that formed Crater Lake in Oregon.
![Streamgage site and profiling tool on the Yellowstone River at Corwin Springs, Montana](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/Corwin%20gage%20with%20labels.jpg?itok=ODkTAl2J)
Streamgage site and profiling tool on the Yellowstone River at Corwin Springs, Montana. The gage house narrowly avoided damage during the June 2022 flood, which eroded the downstream bank. The river profiling instrument helps to map the river bottom to assess streamflow rates and conditions. USGS photo by Mike Poland, July 31, 2023.
Streamgage site and profiling tool on the Yellowstone River at Corwin Springs, Montana. The gage house narrowly avoided damage during the June 2022 flood, which eroded the downstream bank. The river profiling instrument helps to map the river bottom to assess streamflow rates and conditions. USGS photo by Mike Poland, July 31, 2023.
Web camera view of the onset of the June 7 eruption of Kīlauea volcano from the summit caldera.
Web camera view of the onset of the June 7 eruption of Kīlauea volcano from the summit caldera.
![Animated GIF of the Porcelain Basin and Nuphar Lake areas of Norris Geyser Basin](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/Nuphar%20for%20social%20media.jpg?itok=8BKjLjhN)
High-resolution satellite images of the Porcelain Basin and Nuphar Lake areas of Norris Geyser Basin acquired by Quickbird-2 on September 11, 2006 and WorldView-3 on March 30, 2022. Note the change in color of Nuphar lake, from deep green to light blue, over time, as well as the increased evidence of flow from thermal features on the east side of Porcelain Bas
High-resolution satellite images of the Porcelain Basin and Nuphar Lake areas of Norris Geyser Basin acquired by Quickbird-2 on September 11, 2006 and WorldView-3 on March 30, 2022. Note the change in color of Nuphar lake, from deep green to light blue, over time, as well as the increased evidence of flow from thermal features on the east side of Porcelain Bas
Map of Norris Geyser Basin showing the locations of major subbasins, roads and trails, and Nuphar Lake.
Map of Norris Geyser Basin showing the locations of major subbasins, roads and trails, and Nuphar Lake.
![High-resolution satellite images of the Porcelain Basin and Nuphar Lake areas of Norris Geyser Basin](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/Nuphar%20satellite%20images.jpg?itok=WZt8J5OI)
High-resolution satellite images of the Porcelain Basin and Nuphar Lake areas of Norris Geyser Basin
linkHigh-resolution satellite images of the Porcelain Basin and Nuphar Lake areas of Norris Geyser Basin acquired by Quickbird-2 on September 11, 2006 (left), WorldView-3 on July 7, 2016 (middle), and WorldView-3 on March 30, 2022 (right). Note the change in color of Nuphar lake, from deep green to light blue, over time, as well as the increased evidence of flow f
High-resolution satellite images of the Porcelain Basin and Nuphar Lake areas of Norris Geyser Basin
linkHigh-resolution satellite images of the Porcelain Basin and Nuphar Lake areas of Norris Geyser Basin acquired by Quickbird-2 on September 11, 2006 (left), WorldView-3 on July 7, 2016 (middle), and WorldView-3 on March 30, 2022 (right). Note the change in color of Nuphar lake, from deep green to light blue, over time, as well as the increased evidence of flow f
![Visible (top) and thermal (bottom) images of Porcelain Basin](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/FLIR%20image.jpg?itok=HGflB-6E)
Visible (top) and thermal (bottom) images of Porcelain Basin looking to the north from the old roadbed. Nuphar Lake is off the photograph to the right. Cool-water seeps into Porcelain Basin are clearly evident in the thermal image and appear to flow underground from Nuphar Lake. USGS photos by Mike Poland, July 1, 2023.
Visible (top) and thermal (bottom) images of Porcelain Basin looking to the north from the old roadbed. Nuphar Lake is off the photograph to the right. Cool-water seeps into Porcelain Basin are clearly evident in the thermal image and appear to flow underground from Nuphar Lake. USGS photos by Mike Poland, July 1, 2023.
Map of the American Samoa volcano-monitoring network (top). Data from Wake Island hydrograph (located about 4,500 km, or 2,900 miles, northwest of Taʻū Island) shows the general trend in the number of events during the 2022 earthquake swarm (bottom left). Locations for larger earthquakes (M2.5 and greater) are available starting August 20, 2022 (bottom right).
Map of the American Samoa volcano-monitoring network (top). Data from Wake Island hydrograph (located about 4,500 km, or 2,900 miles, northwest of Taʻū Island) shows the general trend in the number of events during the 2022 earthquake swarm (bottom left). Locations for larger earthquakes (M2.5 and greater) are available starting August 20, 2022 (bottom right).
![Map of Yellowstone region showing the backbone and dense 2020 seismic networks](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/Figure_stations_v2.jpg?itok=Sz773CNJ)
Map of Yellowstone region showing the backbone (triangles) and dense 2020 (yellow squares) seismic networks, and based on Wu et al. (2023).
Map of Yellowstone region showing the backbone (triangles) and dense 2020 (yellow squares) seismic networks, and based on Wu et al. (2023).
![Comparison between the velocity structures outlining the Yellowstone’s upper-crustal magma reservoir at 5 km (3 mi) depth based on sparse (left) and dense (right) seismic networks](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/compare.jpg?itok=sjCNE7xt)
Velocity structures outlining the Yellowstone’s upper-crustal magma reservoir based on sparse (left) and dense (right) seismic networks
linkComparison between the velocity structures outlining the Yellowstone’s upper-crustal magma reservoir at 5 km (3 mi) depth based on sparse (left) and dense (right) seismic networks. The open squares denote the locations of seismic sensors. Warmer color indicates lower velocity, representing higher melt fraction within the medium.
Velocity structures outlining the Yellowstone’s upper-crustal magma reservoir based on sparse (left) and dense (right) seismic networks
linkComparison between the velocity structures outlining the Yellowstone’s upper-crustal magma reservoir at 5 km (3 mi) depth based on sparse (left) and dense (right) seismic networks. The open squares denote the locations of seismic sensors. Warmer color indicates lower velocity, representing higher melt fraction within the medium.
![Schematic model of Yellowstone’s subsurface magmatic sill complex based on seismic data collected in 2020](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/Model.jpg?itok=4nYsD-hb)
Schematic model of Yellowstone’s subsurface magmatic sill complex based on seismic data collected in 2020
linkSchematic model of Yellowstone’s subsurface magmatic sill complex based on seismic data collected in 2020.
Schematic model of Yellowstone’s subsurface magmatic sill complex based on seismic data collected in 2020
linkSchematic model of Yellowstone’s subsurface magmatic sill complex based on seismic data collected in 2020.
![Four examples of vertical ground shaking during Steamboat Geyser eruptions as recorded by seismic station YNM](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/Steamboat%20seasonal%20seismic%20signal.jpg?itok=LbIU2n59)
Four examples of vertical ground shaking during Steamboat Geyser eruptions as recorded by seismic station YNM
linkFour examples of vertical ground shaking during Steamboat Geyser eruptions as recorded by seismic station YNM. The vertical scale is the same for each seismogram.
Four examples of vertical ground shaking during Steamboat Geyser eruptions as recorded by seismic station YNM
linkFour examples of vertical ground shaking during Steamboat Geyser eruptions as recorded by seismic station YNM. The vertical scale is the same for each seismogram.
![Woman receiving lei from a man.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/Haaland_Lei.jpeg?itok=Nlf4T1Gk)
Interior Secretary, Deb Haaland, presented with lei by David Phillips, Deputy Scientist-in-Charge of the USGS Hawaiian Volcano Observatory, during a ceremony to celebrate the creation of a new facility that will monitor volcanoes and support conservation science.
Interior Secretary, Deb Haaland, presented with lei by David Phillips, Deputy Scientist-in-Charge of the USGS Hawaiian Volcano Observatory, during a ceremony to celebrate the creation of a new facility that will monitor volcanoes and support conservation science.
![People sitting on a lawn during a ceremony](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/Ceremony_Hi.jpeg?itok=nWoNp0HL)
Federal, state, local and University of Hawai´i leaders and students celebrate the creation of a new facility that will monitor volcanoes and support conservation science.
Federal, state, local and University of Hawai´i leaders and students celebrate the creation of a new facility that will monitor volcanoes and support conservation science.
Earthquake Lake, which formed when the Madison River was blocked by a landslide that occurred as a consequence of the Hebgen Lake earthquake in 1959. The lake inundated existing forest, now marked by standing dead trees in the lake water. The landslide scar is visible on the side of the mountain at the far end of the lake.
Earthquake Lake, which formed when the Madison River was blocked by a landslide that occurred as a consequence of the Hebgen Lake earthquake in 1959. The lake inundated existing forest, now marked by standing dead trees in the lake water. The landslide scar is visible on the side of the mountain at the far end of the lake.
Map of Geyser Hill, Upper Geyser Basin, Yellowstone National Park, with selected thermal features
linkMap of Geyser Hill, Upper Geyser Basin, Yellowstone National Park, showing selected thermal features, including new and reactivated features that were active during the May-June 2023 thermal unrest. Map prepared by by Kiernan Folz-Donahue, Yellowstone National Park.
Map of Geyser Hill, Upper Geyser Basin, Yellowstone National Park, with selected thermal features
linkMap of Geyser Hill, Upper Geyser Basin, Yellowstone National Park, showing selected thermal features, including new and reactivated features that were active during the May-June 2023 thermal unrest. Map prepared by by Kiernan Folz-Donahue, Yellowstone National Park.
![Map of ground deformation monitoring network in the Yellowstone region](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/YVO%20deformation%20network.jpg?itok=FRWb6RK9)
Map of continuous Global Positioning System (GPS), semipermanent GPS, borehole strainmeters, and borehole tiltmeters that provide surface deformation monitoring capability in and around Yellowstone National Park. Red line denotes boundary of Yellowstone Caldera.
Map of continuous Global Positioning System (GPS), semipermanent GPS, borehole strainmeters, and borehole tiltmeters that provide surface deformation monitoring capability in and around Yellowstone National Park. Red line denotes boundary of Yellowstone Caldera.