Data
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Geodetic polygons for an Alaska-Aleutian subduction zone interface earthquake recurrence model Geodetic polygons for an Alaska-Aleutian subduction zone interface earthquake recurrence model
This dataset represents polygons used to approximate areas of geodetic coupling for use in the 2023 update of the USGS National Seismic Hazard Model for Alaska.
Remote Observations of Surface Deformation for the M7.2 and M7.5 2026 Venezuela Earthquakes Remote Observations of Surface Deformation for the M7.2 and M7.5 2026 Venezuela Earthquakes
Summary: This Data Release contains surface deformation measurements resulting from the June 24, 2026, M7.2 and M7.5 Venezuela earthquakes (USGS, 2026). The earthquakes likely ruptured ~175-200 km of the Boconó and San Sebastián faults with right-lateral slip, but minimal discrete surface rupture has been identified to date. These data are based on rapid analysis of available satellite...
Seismic reflection profiles across the Puente Hills fault zone, Los Angeles, California Seismic reflection profiles across the Puente Hills fault zone, Los Angeles, California
This data release contains seismic reflection profiles acquired across the Puente Hills fault zone, Los Angeles, California. The data are high-resolution seismic reflection profiles acquired with mini-sosie (earth tamper), sledgehammer and truck-mounted mini-vibrators. Results are described in the paper: Anthonissen, C.J., L.A. Leon, F.D. Wolfe, J. Don, J.F. Dolan, J.H. Shaw, T.L. Pratt...
Data for analyzing Precariously Balanced Rocks (PBRs) in the northeastern U.S. to estimate maximum post-glacial ground motions Data for analyzing Precariously Balanced Rocks (PBRs) in the northeastern U.S. to estimate maximum post-glacial ground motions
This work describes the data used to characterize boulders and their pedestals in the northeastern U.S. (Maine, New Hampshire, Massachusetts), which are used to calculate maximum plausible earthquake magnitudes in the surrounding region as well as scaling factors for the 2023 time-independent National Seismic Hazard Model site-specific hazard curves (Petersen et al., 2024). The work...
Data for analyzing precariously balanced rocks at the Peaks of Otter, Blue Ridge Mountains of Virginia, to estimate maximum past ground motions Data for analyzing precariously balanced rocks at the Peaks of Otter, Blue Ridge Mountains of Virginia, to estimate maximum past ground motions
This work describes the data used to characterize boulders and their pedestals at the Peaks of Otter, southwest Virginia, which are used to calculate maximum plausible earthquake magnitudes in the surrounding region as well as scaling factors for the 2023 time-independent National Seismic Hazard Model site-specific hazard curves (Petersen et al., 2024). The work presents several new...
A national register of damage and losses associated with flash floods and debris flows after wildfire A national register of damage and losses associated with flash floods and debris flows after wildfire
This data release is a compilation of damage and losses stemming from historical accounts of postfire flash flood and debris-flow activity in the United States. The register spans 147 years (1879–2025) and 12 states (Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, North Carolina, Oregon, Utah, Washington, and Wyoming). We compiled this information from hundreds of...
Geochronological data for the Airport East trench site, West Valley fault zone, Salt Lake County, Utah Geochronological data for the Airport East trench site, West Valley fault zone, Salt Lake County, Utah
This data release includes geochronological data for the Airport East trench site (40.795359, -111.950438) on the Taylorsville fault of the West Valley fault zone (WVFZ). The WVFZ comprises intrabasin faults in the hanging wall of the Wasatch fault zone in the northern part of Salt Lake Valley, Utah. Samples for radiocarbon and luminescence dating were collected from two paleoseismic...
Field Observations of Surface Rupture and Fault Displacement in the 2023 Mw 7.8 Pazarcık, Türkiye Earthquake Field Observations of Surface Rupture and Fault Displacement in the 2023 Mw 7.8 Pazarcık, Türkiye Earthquake
Field observations of surface rupture extent and fault displacement are critical to improving our understanding of rupture processes in the 6 February 2023 earthquakes in the Kahramanmaraş region of Türkiye. This data release includes two primary datasets depicting the 2023 moment magnitude (Mw) 7.8 Pazarcık, Türkiye earthquake rupture: 1) surface rupture mapping (lines) and 2)...
Priority Faults for Improving Seismic Hazard Models in the Intermountain West Region Priority Faults for Improving Seismic Hazard Models in the Intermountain West Region
Abstract This data release includes a list of high-priority hazardous faults and associated spatial data (regional polygons and buffered fault traces) for the Intermountain West (IMW) region of the United States. These are the top five faults or regions of concern per IMW state, based on the 2025 (version 1.0) meeting of the Basin and Range Province Earthquake Working Group. In general...
Sediment core data from the Great Salt Lake, Utah Sediment core data from the Great Salt Lake, Utah
This data release includes measurements of properties from short (
Inventory of Large Slope Instabilities, Central and Eastern Prince William Sound, Alaska Inventory of Large Slope Instabilities, Central and Eastern Prince William Sound, Alaska
Steep landscapes shaped by glaciers, particularly areas where ice has recently retreated, often experience gravitationally driven slope deformation. We refer to hillslopes that show evidence of such deformation as bedrock instabilities. These deep-seated instabilities may or may not develop into coherent landslides with through-going basal sliding surfaces. In coastal environments...
Liquefaction potential index calculations at cone penetration test sites in California Liquefaction potential index calculations at cone penetration test sites in California
This data release provides tabulated liquefaction potential index (LPI) values for a standard set of earthquake magnitudes (M) in the range 4.5-9, peak ground accelerations (PGA) in the range 0-1.0 g, and groundwater depths (GWD) in the range 0-15 m, as described in detail in Engler and others (2025). We use these data to rapidly interpolate LPI values for any M-PGA-GWD combination. The...