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This data release documents proposed updates to geologic inputs (faults) for the upcoming 2023 National Seismic Hazard Model (NSHM). This version (1.0) conveys differences between 2014 NSHM fault sources and those recently released in the earthquake geology inputs for the U.S. National Seismic Hazard Model (NSHM) 2023, version 1.0 data release by Hatem et al. (2021). A notable difference between the 2014 and 2023 datasets is that slip rates are provided at points for 2023 instead of generalized along the entire fault section length as in 2014; consequently, slip rates are not provided for fault sections in the draft 2023 dataset. Geospatial data (shapefile, kml and geojson) are provided in this data release with...
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This data release contains field data for two P-wave seismic reflection profiles acquired across the Warm Springs Valley fault zone, part of the Northern Walker Lane, NV. The dataset consists of high-resolution seismic reflection field records in .segy format, shot coordinates in .csv format, and observers’ logs in .pdf format. The high-resolution seismic profiles are approximately 4 km long. The northern profile (Warm Springs Line 1) is oblique to a prominent fault bounded ridge. The southern profile (Warm Springs Line 2) crosses the northern end of Warm Springs Valley and is nearly co-located with COCORP profile NV-08. To obtain the seismic profiles, we used a 230 kg accelerated weight drop source and a nominal...
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This database contains geometries and basic parameters for fault sections conisdered in earthquake rupture forecasts and probabilistic seismic hazard models (specifically, NSHM23).
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This dataset contains simplified fault traces, derived from the lineament mapping, for the Pit River region, northeastern California.
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This data release contains machine-readable files accompanying the study “Quaternary Reelfoot fault deformation in the Obion River valley, Tennessee, USA" published by Delano et al. (2021) in Tectonics. The data release includes grain size analyses from three auger sites (TableS1_WilsonLoop_grainsize.txt, TableS2_Lanesferry_grainsize.txt, TableS3_BiggsFarm_grainsize.txt) and unit descriptions from three auger sites and a modern analog (TableS4_modern_floodplain_unit_desc.csv, TableS5_Wilson_Loop_unit_desc.csv, TableS6_Lanesferry_Road_unit_desc.csv, TableS7_Biggs_Farm_unit_desc.csv). A readme file (readme.txt) provides details for each file. Delano, J.E., Briggs, R.W., Thompson Jobe, J., Gold, R.D., and Engelhart,...
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This database consists of geologic slip rate information and metadata used to constrain NSHM23 geodetic and geologic deformation models.
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This dataset contains linework for a simplified Quaternary fault map of Puerto Rico, and is described in Table 4 and Figure 24 in the related manuscript. Faults are classified into three different classes based on the presence or absence of geologic evidence for Quaternary fault activity and tectonic origin, and this dataset includes faults that may have weak, equivocal, or limited evidence for Quaternary deformation or tectonic origin. See related manuscript for additional details on interpretation and use of the linework. Related manuscript: Thompson Jobe, J. A. R. Briggs, K. S. Hughes, J. Joyce, R. Gold, S. Mahan, H. Gray, L. Strickland (in review). Neotectonic mapping of Puerto Rico.
This dataset provides supporting evidence for a method of generating geometrically accurate orthophoto mosaics of paleoseismic trenches using physical scale bars printed with coded targets. These data accompany a forthcoming study by Delano et al., 2021, Quick and dirty (and accurate) 3D paleoseismic trench models using coded scale bars. The data constrain three-dimensional models of a 46-m long, narrow trench excavation across the Teton fault (Wyoming, USA). Files include: BB_photos_nwall.zip: Photographs (n= 234) in .jpg format of the north wall of the Buffalo Bowl trench used to construct models. totalstation_control_modelpointcloud.laz: Structure-from-motion model point cloud of the Buffalo Bowl north wall,...
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Surface rupture associated with the 2019 Ridgecrest, California earthquake sequence includes the dominantly left-lateral and northeast-striking M6.4 rupture and dominantly right-lateral and northwest-striking M7.1 rupture. This data release includes surface-displacement observations of these ruptures made by teams of federal, state, academic, and private sector geologists between July and November 2019. These displacement observations describe laterally and/or vertically displaced cultural and geomorphic features. Displacement data included in this release are a subset of rupture observations included in a Seismological Society of America Data Mine article (Ponti et al., in press). Our intent is to compile a complete...
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This Data Release contains version 3.0 of two related earthquake geology databases for use in the 2023 U.S. National Seismic Hazard Model. The databases are: 1) A fault sections database (“NSHM23_FSD_v3”), which depicts the geometry of faults capable of hosting independent earthquakes, and 2) an earthquake geology site information database (“NSHM23_EQGeoDB_v3”), which contains fault slip rate constraints at points. These databases cover the 12 western U.S. states: Washington, Oregon, California, Idaho, Nevada, Arizona, Montana, Wyoming, Colorado, New Mexico and Texas. Datasets containing crustal fault information for Alaska and the central and eastern United States were prepared by Bender and others, 2021 and Thompson...
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The U.S. National Seismic Hazard Model (NSHM) relies on deformation models to assign slip rates along active faults used in the earthquake rupture forecast. Here, we present the geologic deformation model results in tabular form. We provide model outputs in multiple file formats, as well as the polygons used in analyses throughout the geologic deformation model process.The data presented herein are in support of the following interprative manuscript: Hatem, A.E., Reitman, N.G., Briggs, R.W., Gold, R.D., Thompson Jobe, J.A., Burgette, R.J., (2022) ­­­Western U.S. geologic deformation model for use in the U.S. National Seismic Hazard Model 2023, Seismological Research Letters.
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This table describes summary information for Quaternary active faults in Puerto Rico, including an estimated age of fault activity and categorical slip rate bins, and can be found in Table 4 of the related manuscript.
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This dataset contains linework of neotectonic mapping from high-resolution lidar-derived topography and historical aerial images on Puerto Rico.
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This dataset contains linework of lineaments mapped on 4 <1-m-resolution lidar datasets and the 10-m-resolution National Elevation Dataset digital elevation models in the Pit River region of northeastern California. Lineaments are classified by confidence in tectonic origin, map certainty, and the ages of the bedrock and surficial deposits they cross.


map background search result map search result map An updated stress map of the continental U.S. reveals heterogeneous intraplate stress Surface Displacement Observations of the 2019 Ridgecrest, California Earthquake Sequence Crustal architecture of the transtensional Warm Springs Valley fault zone, northern Walker Lane Data to accompany the study "Quick and dirty (and accurate) 3D paleoseismic trench models using coded scale bars" NSHM2023_FaultSections_v1 Shapefile NSHM2023_EQGeoDB_v1 Shapefile Summary of proposed changes to geologic inputs for the U.S. National Seismic Hazard Model (NSHM) 2023, version 1.0 Data to accompany the study “Quaternary Reelfoot fault deformation in the Obion River valley, Tennessee, USA" by Delano et al. (2021) Western U.S. geologic deformation model for use in the U.S. National Seismic Hazard Model 2023, version 1.0 NSHM2023_EQGeoDB_CEUS_v1 shapefile NSHM2023_FaultSections_CEUS_v1 shapefile NSHM2023_FaultPolygons_CEUS_v1 shapefile NSHM23_FSD_v2 NSHM23_EQGeoDB_v2 Lineament mapping from lidar datasets in the Pit River region, northeastern California Simplified fault traces in the Pit River region, northeastern California Earthquake geology inputs for the U.S. National Seismic Hazard Model (NSHM) 2023 (western U.S.) (ver. 3.0, December 2023) Puerto Rico Quaternary fault summary information Neotectonic mapping of fault-related features in Puerto Rico Linework of simplified Quaternary fault map of Puerto Rico Data to accompany the study "Quick and dirty (and accurate) 3D paleoseismic trench models using coded scale bars" Surface Displacement Observations of the 2019 Ridgecrest, California Earthquake Sequence Lineament mapping from lidar datasets in the Pit River region, northeastern California Simplified fault traces in the Pit River region, northeastern California Neotectonic mapping of fault-related features in Puerto Rico Data to accompany the study “Quaternary Reelfoot fault deformation in the Obion River valley, Tennessee, USA" by Delano et al. (2021) Linework of simplified Quaternary fault map of Puerto Rico Puerto Rico Quaternary fault summary information NSHM2023_FaultSections_CEUS_v1 shapefile NSHM2023_EQGeoDB_CEUS_v1 shapefile NSHM2023_FaultPolygons_CEUS_v1 shapefile NSHM2023_EQGeoDB_v1 Shapefile NSHM23_EQGeoDB_v2 NSHM2023_FaultSections_v1 Shapefile NSHM23_FSD_v2 Earthquake geology inputs for the U.S. National Seismic Hazard Model (NSHM) 2023 (western U.S.) (ver. 3.0, December 2023) Summary of proposed changes to geologic inputs for the U.S. National Seismic Hazard Model (NSHM) 2023, version 1.0 Western U.S. geologic deformation model for use in the U.S. National Seismic Hazard Model 2023, version 1.0 An updated stress map of the continental U.S. reveals heterogeneous intraplate stress