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USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Our programs produce accurate geologic maps and 3-D geologic frameworks that provide critical data for sustaining and improving the quality of life and economic vitality of the Nation. They also organize, maintain, and publish the geospatial baseline of the Nation's topography, natural landscape, built environment and more.
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Surficial geology of the northern San Luis Valley, Saguache, Fremont, Custer, Alamosa, Rio Grande, Conejos, and Costilla Counties, Colorado Surficial geology of the northern San Luis Valley, Saguache, Fremont, Custer, Alamosa, Rio Grande, Conejos, and Costilla Counties, Colorado
The San Luis Valley and associated underlying basin of south-central Colorado and north-central New Mexico is the largest structural and hydrologic basin of the Rio Grande Rift and fluvial system. The surrounding San Juan and Sangre de Cristo Mountains reveal evidence of widespread volcanism and transtensional tectonism beginning in the Oligocene and continuing to the present, as seen in...
June 08, 2021—Kīlauea summit thermal map June 08, 2021—Kīlauea summit thermal map
June 08, 2021—Kīlauea summit thermal map constructed from aerial imagery
May 28, 2021—Kīlauea summit contour map May 28, 2021—Kīlauea summit contour map
May 28, 2021—Kīlauea summit contour map showing lava lake level and topographic profiles across the caldera
May 13, 2021—Rise of the Halema‘uma‘u lava lake May 13, 2021—Rise of the Halema‘uma‘u lava lake
Digital elevation models (DEMs) created from photos taken during helicopter overflights of Kīlauea summit.
March 4, 2021—Kīlauea 2018 lower East Rift Zone thermal map March 4, 2021—Kīlauea 2018 lower East Rift Zone thermal map
A thermal map of Kīlauea Volcano's 2018 lower East Rift Zone fissures and steaming area.
May 13, 2021—Halema‘uma‘u eruption Digital Elevation Model May 13, 2021—Halema‘uma‘u eruption Digital Elevation Model
HVO uses regular Kīlauea summit helicopter overflights of Halema‘uma‘u crater to create digital elevation models (DEMs) of the crater.
May 13, 2021—Kīlauea summit eruption thermal map May 13, 2021—Kīlauea summit eruption thermal map
May 13, 2021—Kīlauea summit eruption thermal map constructed from aerial imagery
May 13, 2021—Kīlauea summit eruption thermal map compilation May 13, 2021—Kīlauea summit eruption thermal map compilation
A compilation of nine thermal maps created for the ongoing eruption in Halema‘uma‘u, at the summit of Kīlauea, showing the evolution of the lava lake.
Surface Rupture Map of the 2020 M 6.5 Monte Cristo Range earthquake, Esmeralda and Mineral counties, Nevada Surface Rupture Map of the 2020 M 6.5 Monte Cristo Range earthquake, Esmeralda and Mineral counties, Nevada
The 15 May 2020, M6.5 Monte Cristo Range earthquake was the largest earthquake in Nevada in over 66 years and occurred in a sparsely populated area of western Nevada about 74 km southeast of the town of Hawthorne. The earthquake produced surface rupture distributed across a 28-km-long zone along the eastward projection of the Candelaria fault in the Mina deflection of the central Walker...
May 7, 2021—Kīlauea summit eruption contour map May 7, 2021—Kīlauea summit eruption contour map
May 7, 2021—Kīlauea summit eruption contour map showing lava lake level and elevations of features within the caldera
April 29, 2021—Increasing size of the Halema‘uma‘u lava lake April 29, 2021—Increasing size of the Halema‘uma‘u lava lake
Digital elevation models (DEMs) created from photos taken during helicopter overflights of Kīlauea summit.
April 29, 2021—Rise of the Halema‘uma‘u lava lake April 29, 2021—Rise of the Halema‘uma‘u lava lake
Digital elevation models (DEMs) created from photos taken during helicopter overflights of Kīlauea summit.