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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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October 15, 2021—Kīlauea summit eruption thermal maps October 15, 2021—Kīlauea summit eruption thermal maps
A helicopter overflight on October 15, 2021, at approximately 7:30 a.m. HST allowed for aerial visual and thermal imagery to be collected of Halema‘uma‘u crater at the summit of Kīlauea.
October 14, 2021—Kīlauea summit eruption reference map October 14, 2021—Kīlauea summit eruption reference map
This reference map depicts the ongoing Kīlauea summit eruption as of October 14, 2021.
October 8, 2021 — Kīlauea, Halema‘uma‘u Lava Lake Growth October 8, 2021 — Kīlauea, Halema‘uma‘u Lava Lake Growth
The surface area of the Halema‘uma‘u lava lake at the summit of Kīlauea is now 553,000 square meters, or 157 acres.
October 8, 2021—Kīlauea summit eruption thermal maps October 8, 2021—Kīlauea summit eruption thermal maps
A helicopter overflight on October 8, 2021, at approximately 8:00 a.m. HST allowed for aerial visual and thermal imagery to be collected of Halema‘uma‘u crater at the summit of Kīlauea.
Geologic map of the Athabasca Valles region, Mars Geologic map of the Athabasca Valles region, Mars
This 1:1,000,000-scale geologic map of the Athabasca Valles region of Mars places the best-preserved lavas on Mars into their geologic context. The map shows vigorous geologic activity in the most recent epoch of the geologic history of Mars, which is extremely unusual for the planet. In these atypically youthful terrains, the interpretations of geologic processes are exceptionally...
October 5, 2021—Kīlauea summit eruption reference map October 5, 2021—Kīlauea summit eruption reference map
This reference map depicts the ongoing Kīlauea summit eruption as of October 5, 2021.
Vulnerability assessment in and near Theodore Roosevelt National Park, North Dakota Vulnerability assessment in and near Theodore Roosevelt National Park, North Dakota
Theodore Roosevelt National Park is in western North Dakota and was established in 1978 under the National Wilderness Preservation system to preserve and protect the qualities of the North Dakota Badlands, including the wildlife, scenery, and wilderness. The park is made up of three units (North, Elkhorn Ranch, and South) that are connected by the Little Missouri River, which was...
October 1, 2021—Kīlauea summit eruption thermal maps October 1, 2021—Kīlauea summit eruption thermal maps
A helicopter overflight on October 1, 2021, at approximately 10:00 a.m. HST allowed for aerial visual and thermal imagery to be collected of Halema‘uma‘u crater at the summit of Kīlauea.
September 30, 2020—Kīlauea summit eruption thermal maps September 30, 2020—Kīlauea summit eruption thermal maps
A helicopter overflight on September 30, 2021, at approximately 7:30 a.m. HST allowed for aerial visual and thermal imagery to be collected of Halema‘uma‘u crater at the summit of Kīlauea.
September 29, 2021—Kīlauea summit eruption reference map September 29, 2021—Kīlauea summit eruption reference map
This reference map depicts the ongoing Kīlauea summit eruption as of approximately 6:00 PM on September 29, 2021.
New eruption in Halemaʻumaʻu crater at Kīlauea summit - September 29 New eruption in Halemaʻumaʻu crater at Kīlauea summit - September 29
At approximately 3:20 p.m. HST on September 29, 2021, the USGS Hawaiian Volcano Observatory (HVO) detected glow in Kīlauea summit webcam images indicating that an eruption has commenced within Halemaʻumaʻu crater in Kīlauea’s summit caldera, within Hawai‘i Volcanoes National Park.
Altitude of the potentiometric surface in the Mississippi River Valley alluvial aquifer, spring 2020 Altitude of the potentiometric surface in the Mississippi River Valley alluvial aquifer, spring 2020
The purpose of this report is to present a potentiometric-surface map for the Mississippi River Valley alluvial aquifer (MRVA). The source data for the map were groundwater-altitude data from wells measured manually or continuously generally in spring 2020 and from the altitude of the top of the water surface measured generally on April 9, 2020, in rivers in the area.