Data Releases
The data collected and the techniques used by USGS scientists should conform to or reference national and international standards and protocols if they exist and when they are relevant and appropriate. For datasets of a given type, and if national or international metadata standards exist, the data are indexed with metadata that facilitates access and integration.
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Reports of Hearing and Not Hearing the 1992 eruption of Mount Spurr Reports of Hearing and Not Hearing the 1992 eruption of Mount Spurr
Observations of locations where the August 18th, 1992 eruption of Mount Spurr was heard and not heard around Alaska.
Turbidity model input and output data and associated imagery from May 2022 to November 2023 at Colorado River near Cameo, Colorado Turbidity model input and output data and associated imagery from May 2022 to November 2023 at Colorado River near Cameo, Colorado
Regression models were developed with reflectance values from remote-sensing imagery and concurrent turbidity measurements during a 2 year period at Colorado River near Cameo, Colorado streamgage (U.S. Geological Survey station number 09095500). Three types of remote sensing systems were tested including satellite- and ground-based sensors. Models relate the explanatory variables...
Radiocarbon ages from sites in Peru generated during joint volcano hazards projects carried out by the U.S. Geological Survey Volcano Disaster Assistance Program, Instituto Geofisico del Peru, and Instituto Geologico, Minero y Metalurgico del Peru Radiocarbon ages from sites in Peru generated during joint volcano hazards projects carried out by the U.S. Geological Survey Volcano Disaster Assistance Program, Instituto Geofisico del Peru, and Instituto Geologico, Minero y Metalurgico del Peru
We present the results of 14C age analysis of samples collected during multiple projects that are part of an ongoing, joint initiative of the U.S. Geological Survey Volcano Disaster Assistance Program with the Instituto Geológico Minero y Metalúrgico and Instituto Geofísico del Perú. These projects are part of a wider effort to better understand Peru’s many volcanoes and provide baseline...
Basin characteristics rasters in support of estimation of magnitude and frequency of floods for rural, unregulated streams in Virginia and West Virginia, 2025 Basin characteristics rasters in support of estimation of magnitude and frequency of floods for rural, unregulated streams in Virginia and West Virginia, 2025
This dataset was produced by the US Geological Survey (USGS) as a supporting dataset for calculating stream-gage basin characteristics within the Virginia and West Virginia StreamStats applications. This data release contains the supporting raster representations of various soil and land use attributes generated as explanatory variables for the 2025 flood-frequency study for Virginia and...
Results from dynamic cone penetration testing of soils at hydrologic monitoring sites across Puerto Rico Results from dynamic cone penetration testing of soils at hydrologic monitoring sites across Puerto Rico
A Smart Dynamic Cone Penetrometer (DCP) system allows for the partially automated collection of cone penetrometer data (CPT) to determine mechanical properties of soil along a vertical profile. A smart DCP system was used to collect soil penetration-with-depth values at 19 sites across the mountainous regions of Puerto Rico. The 19 sites were co-located at the United States Geological...
Hydroacoustic Data to Support Embayment Monitoring in Long Island Sound, Farm River Embayment, Connecticut, 2023-2025 Hydroacoustic Data to Support Embayment Monitoring in Long Island Sound, Farm River Embayment, Connecticut, 2023-2025
This data release includes hydroacoustic data for the 2023 to 2025 water years at one station. This station is part of a discrete and continuous monitoring project in embayments on Long Island Sound to support nutrient management activities in Connecticut. The data were collected by the U.S Geological Survey (USGS) in cooperation with the Connecticut Departments of Energy and...