Images

GPS station velocities in the western USA shown in a global (left) and North American (right) reference frame. The direction and length of each arrow shows where that station is moving over time, and how fast. The global reference frame shows overall motion of the North American plate.

Montana State University researchers recording data at an outcrop in Yellowstone National Park. M.S. student Liv Wheeler (right) overlays the GPS position of the outcrop over a geologic map produced by USGS geologist Robert Christianson, while undergraduate student Liam Arnold (left) notes other data related to the outcrop.

Example of a Yellowstone seismic waveform recorded at station YMC (at Maple Creek in the northeast part of Yellowstone National Park) with earthquakes for which a magnitude could not be determined. The magnitude was therefore set at -9.99 in the University of Utah Seismograph Stations catalog.

A map of the stations operating in the Yellowstone region between 2012 and 2024 shown as triangles with fill and edge colors indicating whether they are used to calculate magnitudes using traditional approaches, artificial intelligence methods, or both.

Geodatabase entry for a sample of the Lava Creek Tuff, which is a result of the eruption that formed Yellowstone Caldera about 631,000 years ago.  Top: A selected point in the ArcGIS geodatabase showing all the data recorded in the field as well as an image of the rock sample. Bottom: Topographic map showing the location of where the data were recorded.

Photograph of the Gros Ventre Slide 100 years after it occurred. View is to the south, with the landslide scar visible in the middle of the treed hillslope across the valley. Lower Slide Lake, which formed behind the landslide debris, is visible on the left side of the photograph.  Photo by James Mauch, Wyoming State Geological Survey, June 7, 2025.

Oblique lidar shaded relief map looking east up the Gros Ventre River valley, Wyoming. The Gros Ventre Slide, which occurred on June 23, 1925, is outlined in black, and it moved from the high ridge on the south (right side of image) into the valley below. North-dipping sedimentary rock units are labeled in white, separated by white dashed lines.

Lidar shaded relief map of the Porcelain Basin and Back Basin areas of Norris Geyser Basin in Yellowstone National Park.  Orange star indicates the location of a new thermal pool that formed sometime during late December 2024 to early February 2025.

Animated GIF of high-resolution satellite images of the Porcelain Basin area of Norris Geyser Basin, Yellowstone National Park, showing the development of a new thermal pool in the circled area.  There is no indication of the pool in images from October 19 and December 19, 2024.  A small depression is visible in the January 6, 2025, image.  In the Feb

Landsat 8 and 9 images of southwest Yellowstone National Park from 9-May (left), 25-May (center), and 18-June (right), 2025. The red labels are for the Madison (MP) and Pitchstone Plateaus (PP). The Yellow labels are for Shoshone (SL), Lewis (LL), Heart Lake, and Yellowstone (YL) Lakes. The Blue labels are for Lower (LGB) and Upper (UGB) Geyser Basins.

This frame capture of a video from a webcam shows a small eruption emanating from Black Diamond Pool in Biscuit Basin, a subbasin of Upper Geyser Basin in Yellowstone National Park, on May 31, 2025.  This was the site of a hydrothermal explosion on July 23, 2024.

Water temperature in a runoff channel of Black Diamond Pool in Biscuit Basin, Yellowstone National Park, measured on May 31, 2025.  The spike and subsequent drop over the span of about four minutes, followed by the low temperature recorded over about the following hour, is due to a small eruption that occurred from the pool at 8:39 p.m. that day.

Image from the webcam installed at Biscuit Basin in Yellowstone National Park.  The view is of Black Diamond Pool, where a hydrothermal explosion occurred on July 23, 2024 (many of the rocks behind and to the right of the pool were deposited during that event).  The background cliff is the Summit Lake rhyolite lava flow, which is about 111,000 years old.&n

Temporary webcam deployed on the boardwalk in Biscuit Basin, Yellowstone National Park.  The pan/tilt/zoom camera provides a static view every 15 minutes and records video on site for later download as needed.  Black Diamond Pool, site of a hydrothermal explosion on July 23, 2024, is in the background.  This work was completed under Yellowstone Nation

View looking northwest at a new thermal pool in the Porcelain Basin area of Norris Geyser Basin, Yellowstone National Park, that probably formed in a series of mildly explosive events between late December 2024 and early February 2025.  The rocks and white material (silica mud) surrounding the pool were probably ejected as the feature formed.  The pool is

Graph showing the average annual occurrence and equivalent energy release for earthquakes of different magnitudes. Plot is from the EarthScope Consortium (https://www.iris.edu/hq/inclass/fact-sheet/how_often_do_earthquakes_occ…).

Map of Yellowstone’s thermal areas. Inset commercial satellite images highlight thermal areas that are mentioned below: Sulphur Hills (©2022, Maxar, USG), Turbid Lake (©2022, Maxar, USG), and Lower Geyser Basin (©2015, Maxar, USG).  This work utilized data made available through the NASA Commercial SmallSat Data Acquisition Program.  We acknowledge th

Infrasound recorded on May 3, 2025, at 9:33 p.m. MDT.  This image is the thumbnail for a video posted on the USGS Yellowstone Volcano Observatory website. 

Yellowstone National Park Geology Program team members Samantha Hilburn (left) and Margery Price (right), both Physical Science Technicians, pose with a snow pit dug near Lewis Canyon for installation of a semi-permanent GPS site, installed in collaboration with USGS scientists. USGS photo by Dan Dzurisin, May 2025.

Seismic reflection data showing the top of the magma reservoir beneath Yellowstone Caldera along a cross section that runs from Canyon Village in the northwest (X) to near Lake Butte in the southeast (X`).  The top panel shows seismic P-wave (compressional wave) reflectivity, with evidence for the sharp reservoir top labeled.

This reference map depicts the Kīlauea summit eruption within Halema‘uma‘u crater that began on December 23, 2024. As of this posting on March 10, the eruption has had twelve episodes, with a thirteenth likely to occur the next 24 hours.