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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Synthetic geologic deformation model distributions for use in 2025 USGS Puerto Rico-U.S. Virgin Islands National Seismic Hazard Model update Synthetic geologic deformation model distributions for use in 2025 USGS Puerto Rico-U.S. Virgin Islands National Seismic Hazard Model update
This Data Release provides synthetic probability density functions used in the geologic deformation model as part of the 2025 National Seismic Hazard Model update for Puerto Rico-U.S. Virgin Islands. We include files implemented in the earthquake rupture forecast using the inversion framework. Modeling philosophy and methodologies are described in the interpretative companion manuscript...
Western U.S. Date of Last Event (DOLE) for use in time-dependent probabilistic seismic hazard analyses Western U.S. Date of Last Event (DOLE) for use in time-dependent probabilistic seismic hazard analyses
This Data Release contains two compilations provide information on the date of the last known earthquake in the U.S. where available (conterminous U.S. and Alaska). There are two spatial datasets with different feature geometries — line features (“HistDOLE_v1”) and point features (“PaleoDOLE_v1”). The line features describe surface ruptures constrained by historical or near-historical...
Reproduction and locations of oaks in Yolo County, California, USA from 2013-2023 Reproduction and locations of oaks in Yolo County, California, USA from 2013-2023
Oaks were mapped in a portion of Yolo County, California, USA. For 26 focal trees, acorn counts were conducted from 2013-2023. Trees were located in rural and urban areas. Rural trees were located visually and location was recorded. Urban tree locations were drawn from randomly distributed point locations at 1.2 valley oaks per hectare. The data also include distance between oak trees to...
Grain size analysis and total carbon content of augered sediment samples from Barter Island, Alaska Grain size analysis and total carbon content of augered sediment samples from Barter Island, Alaska
This data release contains grain size and total carbon analysis of sediment samples from 1 inch hand-augered cores collected from Barter Island, Alaska. These data were collected in 2016 and 2019 (USGS Field Activity 2016-645-FA and 2019-634-FA). Data include location information (latitude, longitude, depth), and the weight percent of 65 phi bins, four size fractions (gravel, sand, silt...
Tidal marsh inundation state and water level observations with concurrent tide gauge measurements Tidal marsh inundation state and water level observations with concurrent tide gauge measurements
This data release contains water level observations from a sensor grid deployed in the tidal marshes of the Charles H. Wheeler Wildlife Management Area in the central Long Island Sound (Connecticut, USA). Water level sensors were deployed between August 2018 and December 2018 to serve as a calibration/validation (cal/val) dataset for the development, refinement, and evaluation of remote...
Landslide seismic features and station picks for events from a global catalog Landslide seismic features and station picks for events from a global catalog
This data release contains files supporting the publication “Landslide volume estimation from seismic waveform features using a global catalog of seismogenic events” (Collins and others, 2026). Events.csv lists each landslide event used in the publication, published event ids, names, times, locations, and volumes taken from Seismogenic Landslides and other Mass Movements (ver. 3.0, May...