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Geologic map of Scoggins Dam, Henry Hagg Lake, and Scoggins Valley, Washington County, Oregon

New geologic mapping (Wells and others, 2020b) and geophysical mapping (Blakely and others, 2000; McPhee and others, 2014; Wells and others, 2020a) document kilometers of Cenozoic right-lateral offset along the Gales Creek Fault Zone, a major, northwest-striking fault zone forming the boundary between the Tualatin Valley and the Coast Range. The Bureau of Reclamation’s (Reclamation) Scoggins Dam (
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Geology, Minerals, Energy, and Geophysics Science Center

December 29, 2024—InSAR image of Kīlauea deformation associated with ongoing eruption


This map shows recent deformation at Kīlauea over the timeframe of December 17–29, 2024, during which an eruption began within Halemaʻumaʻu crater at the volcano's summit.

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Natural Hazards Mission Area, Volcano Hazards Program, Hawaiian Volcano Observatory, Kīlauea

Geologic map and structure sections along the southern part of the Bartlett Springs Fault Zone and adjacent areas from Cache Creek to Lake Berryessa, northern Coast Ranges, California

IntroductionLocated in the Coast Ranges of northern California, the Bartlett Springs Fault Zone is the easternmost fault in the San Andreas Fault system in northern California. The fault is a right-lateral, strike-slip structure considered capable of producing an earthquake of moment magnitude 7. The purpose of this mapping is to better characterize the geology and earthquake hazards associated wi
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Geology, Minerals, Energy, and Geophysics Science Center

December 23, 2024 — Thermal map of eruption at Kīlauea summit

This thermal map shows lava flows covering the floor of Halemaʻumaʻu crater at the summit of Kīlauea.  Fountaining was active in the southwest portion of the caldera, with flows extending east onto the downdropped block. Cooler colors (purple, black) show lower temperatures while hotter colors (orange, yellow) show higher temperatures. 

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Natural Hazards Mission Area, Volcano Hazards Program, Volcano Science Center, Hawaiian Volcano Observatory, Kīlauea

December 23, 2024—Kīlauea summit eruption reference map

This reference map depicts the new Kīlauea summit eruption within Halema‘uma‘u crater on December 23, 2024, constructed using data captured during a USGS Hawaiian Volcano Observatory helicopter overflight at 9:30 a.m. 

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Natural Hazards Mission Area, Volcano Hazards Program, Volcano Science Center, Hawaiian Volcano Observatory, Kīlauea

Seabed maps showing topography, ruggedness, backscatter intensity, sediment mobility, and the distribution of geologic substrates in quadrangle 2 of the Stellwagen Bank National Marine Sanctuary region offshore of Boston, Massachusetts

The U.S. Geological Survey, in cooperation with the National Marine Sanctuary Program of the National Oceanic and Atmospheric Administration, has conducted seabed mapping and related research in the Stellwagen Bank National Marine Sanctuary (SBNMS) region since 1993. The area being mapped using geophysical and geological data includes the SBNMS and the surrounding region, which totals approximatel
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Woods Hole Coastal and Marine Science Center

Geologic map of the southern Stillwater Range, Nevada

The southern Stillwater Range in west-central Nevada contains the western part of the Oligocene Stillwater-Clan Alpine caldera complex, which extends about 55 kilometers (km) east from the west side of the Stillwater Range to the northwestern Desatoya Mountains. The complex consists of at least seven nested ignimbrite calderas and subjacent plutonic rocks emplaced into a complex basement composed
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Geology, Minerals, Energy, and Geophysics Science Center, Geosciences and Environmental Change Science Center

Geomorphic map of the Umatilla River corridor, Oregon

This map portrays the distribution of landforms along the Umatilla River in northeastern Oregon and covers a corridor 127 kilometers long from the confluence of the Umatilla River with the Columbia River upstream to Meacham Creek. The map encompasses the valley bottom and extends about 1 kilometer up the adjoining hillslopes. Map data are intended to support water quality and fisheries enhancement
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Geology, Minerals, Energy, and Geophysics Science Center

October 23, 2024—InSAR image of Kīlauea middle East Rift Zone deformation

This map shows recent deformation at Kīlauea over the timeframe of October 6–18, 2024.

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Volcano Hazards Program, Hawaiian Volcano Observatory, Kīlauea

October 4, 2024 — Reference map of September 2024 Kīlauea middle East Rift Zone eruption

This reference map depicts the final state of the Kīlauea middle East Rift Zone eruption that occurred between September 15 and 20, 2024.

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Volcano Hazards Program, Hawaiian Volcano Observatory, Kīlauea

September 26, 2024—InSAR image of Kīlauea deformation associated with recent eruption

This map shows recent deformation at Kīlauea over the timeframe of September 14–26, 2024, during which an eruption occurred on the East Rift Zone. 

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Natural Hazards Mission Area, Volcano Hazards Program, Kīlauea

September 20, 2024 — Thermal map of eruption on Kīlauea East Rift Zone

A helicopter overflight on September 20, 2024, allowed for aerial visual and thermal imagery to be collected at the middle East Rift Zone eruption site on Kīlauea.

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Volcano Hazards Program, Hawaiian Volcano Observatory, Kīlauea
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