Yellowstone | U.S. Geological Survey Official websites use .gov .gov website belongs to an official government organization in the United States. Secure .gov websites use HTTPS lock ( or means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites. Yellowstone Find U.S. Volcano Filters The map displays volcanoes, earthquakes, monitoring instruments, and past lava flows. Get Help Earthquake Plots To view an earthquake cross-sectional plot, click "Draw Plot" to start drawing on the map. Once the plot area is selected, click on "View Plot" to view chart or "Clear Plot" to start over. Map Layers Earthquake Colors Earthquake Depth Units Earthquake Time Units Results Filters The map displays volcanoes, earthquakes, monitoring instruments, and past lava flows. Get Help Earthquake Plots To view an earthquake cross-sectional plot, click "Draw Plot" to start drawing on the map. Once the plot area is selected, click on "View Plot" to view chart or "Clear Plot" to start over. Settings Map Layers Earthquake Colors Earthquake Depth Units Earthquake Time Units Map Legend Map Legend Results Current Updates and Notifications Yellowstone green NORMAL, 2026-04-01 16:30:25 UTC Yellowstone Volcano Updates North Caldera Uplift Science Publications Data Maps Multimedia News Connect The Yellowstone Plateau volcanic field developed through three volcanic cycles that span two-million years. Two of the eruptions are considered some of the world's largest volcanic events. Yellowstone's youngest eruptions have been lava flows that remain confined to the caldera of present-day Yellowstone National Park. The 77,000 year-old Pitchstone Plateau flow is the volcano's most recent lava. Quick Facts Location: Wyoming and Montana Latitude: 44.615° N Longitude: 110.6° W Elevation: 2,805 m / 9,203 f Volcano type: Caldera Composition: basalt to rhyolite Most recent eruption: 70,000 years ago (lava), current hydrothermal explosions Threat Potential: High* *based on the National Volcano Early Warning System Summary The >2450 km (588 mi ) Huckleberry Ridge Tuff erupted about 2.1 million years ago, creating an approximately 75 km (47 mi) wide caldera and thick volcanic deposits. A second eruption cycle concluded with the much smaller Mesa Falls Tuff around 1.3 million years ago. Activity subsequently shifted to the present Yellowstone Plateau and culminated 640,000 years ago with the eruption of the >1000 km (240 mi ) Lava Creek Tuff and consequent formation of the 45 x 85 km (28 x 53 mi) caldera. Large volumes of rhyolitic lava flows (approximately 600 km (144 mi ) were erupted in the caldera between 180,000 and 70,000 years ago, distributed primarily along two north-south alignments of vents. No magmatic eruptions have occurred since then, but large hydrothermal explosions have taken place during the Holocene, including from within and near Yellowstone Lake. Uplift and subsidence of the ground surface is centered on two uplifted regions (the Mallard Lake and Sour Creek resurgent domes). Large earthquakes occur just off the plateau along the nearby Teton and Hebgen Lake faults, the latter of which ruptured in 1959 (Ms = 7.5), causing considerable damage to the region. Yellowstone is presently the site of one of the world's largest hydrothermal systems including Earth's largest concentration of geysers. No longer in the dark: Shining a light on Yellowstone’s hydrothermal explosions April 20, 2026 No longer in the dark: Shining a light on Yellowstone’s hydrothermal explosions The 2024 YVO annual report has just exploded from the presses! April 13, 2026 The 2024 YVO annual report has just exploded from the presses! The path of least resistance: Investigating hot spring plumbing systems in Yellowstone using electrical measurements April 6, 2026 The path of least resistance: Investigating hot spring plumbing systems in Yellowstone using electrical measurements View All October 22, 2018 2018 update to the U.S. Geological Survey national volcanic threat assessment 2018 update to the U.S. Geological Survey national volcanic threat assessment When erupting, all volcanoes pose a degree of risk to people and infrastructure, however, the risks are not equivalent from one volcano to another because of differences in eruptive style and geographic location. Assessing the relative threats posed by U.S. volcanoes identifies which volcanoes warrant the greatest risk-mitigation efforts by the U.S. Geological Survey and its partners... Authors John W. Ewert, Angela K. Diefenbach, David W. 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Similar deformation occurred in the same area during 1996-2004 and reveals characteristics of the subsurface. By Volcano Science Center Yellowstone Volcano Observatory Yellowstone Uplift along the north rim of Yellowstone Caldera January 8, 2026 Uplift along the north rim of Yellowstone Caldera An area on the north rim of Yellowstone caldera, to the south of Norris Geyser Basin, started to uplift slightly in July 2025. Similar deformation occurred in the same area during 1996-2004 and reveals characteristics of the subsurface. December 8, 2025 Eyes on Earth Episode 137 – Landsat Takes Yellowstone’s Temperature How do you keep track of thousands of hot spots in an area the size of Yellowstone National Park? Check out thermal satellite data like Landsat’s! By Core Science Systems Mission Area National Land Imaging Program Astrogeology Science Center Earth Resources Observation and Science (EROS) Center Yellowstone Volcano Observatory Yellowstone Landsat Missions Eyes on Earth Episode 137 – Landsat Takes Yellowstone’s Temperature December 8, 2025 Eyes on Earth Episode 137 – Landsat Takes Yellowstone’s Temperature How do you keep track of thousands of hot spots in an area the size of Yellowstone National Park? Check out thermal satellite data like Landsat’s! November 13, 2023 Questions About Monitoring Yellowstone Answers to questions about monitoring at Yellowstone. By Yellowstone Volcano Observatory Yellowstone Questions About Monitoring Yellowstone November 13, 2023 Questions About Monitoring Yellowstone Answers to questions about monitoring at Yellowstone. View All Infographic giving earthquake, deformation, thermal emission, and geyser statistics for the Yellowstone region for the year 2024 Infographic giving earthquake, deformation, thermal emission, and geyser statistics for the Yellowstone region for the year 2024 Many with arms raised standing in front of am erupting geyser with forest and blue sky in the background Lone Star Geyser (Yellowstone Monthly Update - April 2026) Front cover of Yellowstone Volcano Observatory 2024 annual report Front cover of Yellowstone Volcano Observatory 2024 annual report Man gesturing in front of a barren landscape with title "The New Norris Hot Spring" The New Norris Hot Spring (Yellowstone Monthly Update - March 2026) Google Earth map showing the location of Yellowstone Caldera’s antipode Google Earth map showing the location of Yellowstone Caldera’s antipode Surface imagery and subsurface electrical resistivity tomography results from Rosette Spring in Yellowstone’s Lower Geyser Basin Surface imagery and subsurface electrical resistivity tomography results from Rosette Spring in Yellowstone’s Lower Geyser Basin Big Ben Volcano on Heard Island Big Ben Volcano on Heard Island Echinus temperature record during February 6-7, 2026 Echinus temperature record during February 6-7, 2026 Thumbnail image of a man standing outside holding up his hands and speaking in front of a forest Measuring Moving Mountains (Yellowstone monthly update - February 2026) View All Quick Facts Location: Wyoming and Montana Latitude: 44.615° N Longitude: 110.6° W Elevation: 2,805 m / 9,203 f Volcano type: Caldera Composition: basalt to rhyolite Most recent eruption: 70,000 years ago (lava), current hydrothermal explosions Threat Potential: High* *based on the National Volcano Early Warning System Volcanoes Hazards Program Links Assess Prepare Forecast Activity Products Observatories About Was this page helpful?