Map of seismicity (red circles) in the Yellowstone region during 2025. 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.
Multimedia
Images
Map of Yellowstone seismicity in 2025
Map of seismicity (red circles) in the Yellowstone region during 2025. 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.
Infographic with statistics about hats that were recovered from thermal areas in Yellowstone National Park during 2025
Infographic with statistics about hats that were recovered from thermal areas in Yellowstone National Park during 2025Infographic showing the numbers, styles, colors, and other data regarding hats recovered from thermal areas by the Yellowstone National Park Geology Program in 2025. Designed by Margery Price, Yellowstone National Park.
Infographic with statistics about hats that were recovered from thermal areas in Yellowstone National Park during 2025
Infographic with statistics about hats that were recovered from thermal areas in Yellowstone National Park during 2025Infographic showing the numbers, styles, colors, and other data regarding hats recovered from thermal areas by the Yellowstone National Park Geology Program in 2025. Designed by Margery Price, Yellowstone National Park.
Relocated Yellowstone seismicity recorded during 2008-2022
Relocated Yellowstone seismicity recorded during 2008-2022Map view of relocated Yellowstone seismicity recorded during 2008-2022, colored by time, on the left. White line gives the outline of Yellowstone caldera. The A-A’ cross section through Yellowstone Lake is shown at the right and illustrates how seismic swarms that are distinct in time relate to one another. Adapted from Florez and others, 2025 (
Relocated Yellowstone seismicity recorded during 2008-2022
Relocated Yellowstone seismicity recorded during 2008-2022Map view of relocated Yellowstone seismicity recorded during 2008-2022, colored by time, on the left. White line gives the outline of Yellowstone caldera. The A-A’ cross section through Yellowstone Lake is shown at the right and illustrates how seismic swarms that are distinct in time relate to one another. Adapted from Florez and others, 2025 (
Upgrading the WLWY continuous GPS site in Yellowstone National Park
Upgrading the WLWY continuous GPS site in Yellowstone National ParkEarthScope engineers Brendan Hodge (left) and Lia Lajoie (right) perform upgrades at the WLWY (White Lake) continuous GPS station in Yellowstone National Park. The white box contains the receiver, while the barrel on the ground contains batteries. The tower holds the solar panels, as well as a cellular modem and meteorological sensors that were recently
Upgrading the WLWY continuous GPS site in Yellowstone National Park
Upgrading the WLWY continuous GPS site in Yellowstone National ParkEarthScope engineers Brendan Hodge (left) and Lia Lajoie (right) perform upgrades at the WLWY (White Lake) continuous GPS station in Yellowstone National Park. The white box contains the receiver, while the barrel on the ground contains batteries. The tower holds the solar panels, as well as a cellular modem and meteorological sensors that were recently
Hats collected by the Yellowstone National Park Geology Program from sensitive thermal areas in 2025
Hats collected by the Yellowstone National Park Geology Program from sensitive thermal areas in 2025Just some of the hats collected by the Yellowstone National Park Geology Program from sensitive thermal areas throughout the park in 2025. National Park Service photo by Margery Price, September 3, 2025.
Hats collected by the Yellowstone National Park Geology Program from sensitive thermal areas in 2025
Hats collected by the Yellowstone National Park Geology Program from sensitive thermal areas in 2025Just some of the hats collected by the Yellowstone National Park Geology Program from sensitive thermal areas throughout the park in 2025. National Park Service photo by Margery Price, September 3, 2025.
USGS geologist collects a sample from a potential newly recognized lava flow along the Gibbon River, Yellowstone National Park
USGS geologist collects a sample from a potential newly recognized lava flow along the Gibbon River, Yellowstone National ParkUSGS geologist Mark Stelten collects a sample of what is potentially a newly recognized lava flow exposed along the Gibbon River. USGS photo by Nicole Thomas, September 2025.
USGS geologist collects a sample from a potential newly recognized lava flow along the Gibbon River, Yellowstone National Park
USGS geologist collects a sample from a potential newly recognized lava flow along the Gibbon River, Yellowstone National ParkUSGS geologist Mark Stelten collects a sample of what is potentially a newly recognized lava flow exposed along the Gibbon River. USGS photo by Nicole Thomas, September 2025.
Videos
Grand Prismatic Spring: Boiling, colorful, and full of bacteria! (Yellowstone Monthly Update - July 2025)
Grand Prismatic Spring: Boiling, colorful, and full of bacteria! (Yellowstone Monthly Update - July 2025)Grand Prismatic Spring is the largest hot spring in the US, and one of the largest in the world. The boiling lake was named for the spectacular array of colors along its rim.
Grand Prismatic Spring: Boiling, colorful, and full of bacteria! (Yellowstone Monthly Update - July 2025)
Grand Prismatic Spring: Boiling, colorful, and full of bacteria! (Yellowstone Monthly Update - July 2025)Grand Prismatic Spring is the largest hot spring in the US, and one of the largest in the world. The boiling lake was named for the spectacular array of colors along its rim.
Black Diamond Pool (Biscuit Basin, Yellowstone National Park) eruption on May 31, 2025
Black Diamond Pool (Biscuit Basin, Yellowstone National Park) eruption on May 31, 2025This video, recorded by a webcam, shows a small eruption from Black Diamond Pool in the Biscuit Basin subbasin of Upper Geyser Basin, Yellowstone National Park, at 8:39 p.m. MDT on May 31, 2025. The pool was the site of a hydrothermal explosion on July 23, 2024.
Black Diamond Pool (Biscuit Basin, Yellowstone National Park) eruption on May 31, 2025
Black Diamond Pool (Biscuit Basin, Yellowstone National Park) eruption on May 31, 2025This video, recorded by a webcam, shows a small eruption from Black Diamond Pool in the Biscuit Basin subbasin of Upper Geyser Basin, Yellowstone National Park, at 8:39 p.m. MDT on May 31, 2025. The pool was the site of a hydrothermal explosion on July 23, 2024.
The Challenge of Volcano Monitoring, Eruption Forecasting, and Protecting Vulnerable Populations
The Challenge of Volcano Monitoring, Eruption Forecasting, and Protecting Vulnerable PopulationsThis presentation by Dr. Jake Lowenstern was prepared for the AGU 2024-2025 Distinguished Lecture Series. It discusses the challenges of volcano monitoring, eruption forecasting, and protecting vulnerable populations.
The Challenge of Volcano Monitoring, Eruption Forecasting, and Protecting Vulnerable Populations
The Challenge of Volcano Monitoring, Eruption Forecasting, and Protecting Vulnerable PopulationsThis presentation by Dr. Jake Lowenstern was prepared for the AGU 2024-2025 Distinguished Lecture Series. It discusses the challenges of volcano monitoring, eruption forecasting, and protecting vulnerable populations.
Biscuit Basin Hydrothermal Explosion Update (Yellowstone Monthly Update — October 2024)
Biscuit Basin Hydrothermal Explosion Update (Yellowstone Monthly Update — October 2024)Let’s get you caught up on what we’ve learned about the July 23, 2024, hydrothermal explosion in Biscuit Basin, in this Yellowstone Volcano Observatory Monthly Update for October 2024.
Read Caldera Chronicles
Biscuit Basin Hydrothermal Explosion Update (Yellowstone Monthly Update — October 2024)
Biscuit Basin Hydrothermal Explosion Update (Yellowstone Monthly Update — October 2024)Let’s get you caught up on what we’ve learned about the July 23, 2024, hydrothermal explosion in Biscuit Basin, in this Yellowstone Volcano Observatory Monthly Update for October 2024.
Read Caldera Chronicles
Biscuit Basin Update; 65th Anniversary — M7.3 Hebgen Lake Quake (Yellowstone Monthly Update - Aug 2024)
Biscuit Basin Update; 65th Anniversary — M7.3 Hebgen Lake Quake (Yellowstone Monthly Update - Aug 2024)In this month's video, we update you on the Biscuit Basin explosion on July 23, 2024, and discuss the 65th anniversary of the M7.3 Hegben Lake earthquake.
Biscuit Basin Update; 65th Anniversary — M7.3 Hebgen Lake Quake (Yellowstone Monthly Update - Aug 2024)
Biscuit Basin Update; 65th Anniversary — M7.3 Hebgen Lake Quake (Yellowstone Monthly Update - Aug 2024)In this month's video, we update you on the Biscuit Basin explosion on July 23, 2024, and discuss the 65th anniversary of the M7.3 Hegben Lake earthquake.
Kansas covered in ash? Yellowstone's aftermath (Yellowstone Volcano Update - March 2024)
Kansas covered in ash? Yellowstone's aftermath (Yellowstone Volcano Update - March 2024)Volcanic ash in Kansas? It's true there's thick deposits there, but where are the source volcanoes? Geologists began puzzling over this in the late 1800s when these deposits were first recognized.
Kansas covered in ash? Yellowstone's aftermath (Yellowstone Volcano Update - March 2024)
Kansas covered in ash? Yellowstone's aftermath (Yellowstone Volcano Update - March 2024)Volcanic ash in Kansas? It's true there's thick deposits there, but where are the source volcanoes? Geologists began puzzling over this in the late 1800s when these deposits were first recognized.
Webcams
Biscuit Basin webcam
The camera view is north-northwest from the Biscuit Basin boardwalk looking at Black Diamond Pool, which is in the foreground (the tilted viewing angle is due to the slope of the boardwalk).
The camera view is north-northwest from the Biscuit Basin boardwalk looking at Black Diamond Pool, which is in the foreground (the tilted viewing angle is due to the slope of the boardwalk).
Johnston Ridge Observatory, Mount St. Helens
This static image is from a USGS Cascades Volcano Observatory research camera located at the Johnston Ridge Observatory, north of Mount St. Helens. The view is to the south. This camera is intended to assist the USGS with situational awareness. At times, clouds, rain, and snow obscure visibility.
This static image is from a USGS Cascades Volcano Observatory research camera located at the Johnston Ridge Observatory, north of Mount St. Helens. The view is to the south. This camera is intended to assist the USGS with situational awareness. At times, clouds, rain, and snow obscure visibility.
[HLcam] Live Image of Mauna Loa's northwest flank from Hualālai volcano
[HLcam] Live Image of Mauna Loa's northwest flank from Hualālai volcanoLive view of the northwest flank of Mauna Loa; the view is from the southeast flank of Hualālai [HLcam]. This camera is a pan-tilt-zoom model and the view may change depending on activity.
[HLcam] Live Image of Mauna Loa's northwest flank from Hualālai volcano
[HLcam] Live Image of Mauna Loa's northwest flank from Hualālai volcanoLive view of the northwest flank of Mauna Loa; the view is from the southeast flank of Hualālai [HLcam]. This camera is a pan-tilt-zoom model and the view may change depending on activity.