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September 15, 2023 — Kīlauea summit thermal maps

A helicopter overflight on September 15, 2023, allowed for aerial visual and thermal imagery to be collected at the summit of Kīlauea.

By
Volcano Hazards Program, Hawaiian Volcano Observatory, Kīlauea

September 14, 2023 — Kīlauea summit thermal maps

A helicopter overflight on September 14, 2023, allowed for aerial visual and thermal imagery to be collected at the summit of Kīlauea.

By
Volcano Hazards Program, Hawaiian Volcano Observatory, Kīlauea

September 14, 2023 — Kīlauea summit eruption reference map

The Kīlauea summit eruption that began on Sunday, September 10, 2023 continues; this map depicts lava flow activity as of September 14, the fourth full day of the eruption.

By
Volcano Hazards Program, Hawaiian Volcano Observatory, Kīlauea

September 12, 2023 — Kīlauea summit thermal maps

A helicopter overflight on September 12, 2023, allowed for aerial visual and thermal imagery to be collected at the summit of Kīlauea.

By
Volcano Hazards Program, Hawaiian Volcano Observatory, Kīlauea

September 11, 2023 — Kīlauea summit thermal maps

A helicopter overflight on September 11, 2023, allowed for aerial visual and thermal imagery to be collected at the summit of Kīlauea.

By
Volcano Hazards Program, Hawaiian Volcano Observatory, Kīlauea

September 11, 2023—Kīlauea summit eruption reference map

A new eruption at the summit of Kīlauea volcano began at approximately 3:13 p.m. on Sunday, September 10, 2023.

By
Volcano Hazards Program, Hawaiian Volcano Observatory, Kīlauea

Mapping karst groundwater flow paths and delineating recharge areas for Fern Cave, Alabama, through the use of dye tracing

Fern Cave in Jackson County, Alabama, is a 15.6-mile-long (25.1-kilometer) cave system, managed by the U.S. Fish and Wildlife Service and Southeastern Cave Conservancy, that has the second highest biodiversity of any cave in the southeastern United States. Groundwater in karst ecosystems is known to be susceptible to impacts from human-induced land-use activities in watersheds that contribute rech
By
Lower Mississippi-Gulf Water Science Center

Aeromagnetic map of northeastern California

Aeromagnetic surveys were conducted to improve understanding of the geology and structure in northeastern California, a region predominantly covered by Quaternary and Tertiary, mainly Neogene, volcanic rocks including Medicine Lake volcano. New aeromagnetic data are a substantial improvement over existing data and reveal structural details not resolved by older surveys. Here we show how these data
By
Geosciences and Environmental Change Science Center, Geology, Minerals, Energy, and Geophysics Science Center

Estimating streambed hydraulic conductivity for selected streams in the Mississippi Alluvial Plain using continuous resistivity profiling methods—Delta region

Introduction The Mississippi Alluvial Plain is one of the most important agricultural regions in the United States, and crop productivity relies on groundwater irrigation from an aquifer system whose full capacity is unknown. Groundwater withdrawals from the Mississippi River Valley alluvial aquifer have resulted in substantial groundwater-level declines and reductions in base flow in streams with
By
Lower Mississippi-Gulf Water Science Center

Geologic and geophysical maps of the Stockton 30’ × 60’ quadrangle, California

This pamphlet and accompanying geologic and geophysical maps are the products of cooperative efforts by the California Geological Survey (CGS) and United States Geological Survey (USGS) to compile a comprehensive, digital representation of the bedrock geology, Quaternary surficial deposits, and potential-field anomalies within the boundaries of the Stockton 30’ × 60’ quadrangle. The Stockton 30’ ×
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National Cooperative Geologic Mapping Program, Geology, Minerals, Energy, and Geophysics Science Center

July 21, 2023—Reference map of recent Kīlauea summit eruption

This reference map depicts the recent Kīlauea summit eruption in June 2023.

By
Natural Hazards Mission Area, Volcano Hazards Program, Kīlauea

Percent-slope map showing historical anthracite coal-mining infrastructure at the northern end of the Lackawanna syncline, Wayne, Susquehanna, and Lackawanna Counties, Pennsylvania

Introduction Abandoned railroads and infrastructure from the anthracite coal-mining industry are significant features in abandoned mine lands and are an important part of history; however, these features are often lost and masked by the passage of time and the regrowth of forests. The application of modern light detection and ranging (lidar) topographic analysis, combined with field verification,
By
Florence Bascom Geoscience Center
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