Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content
  • Feedback

    • Site characterization of National Strong Motion Program earthquake monitoring stations across Los Angeles, San Bernardino, Kern, and Imperial Counties: with emphatic geophysical survey work along the El Centro Array

    Metadata Updated: October 2, 2025

    Site characterization, with the goal of measuring VS30, was performed at 27 strong motion stations across Central and Southern California. These stations, belonging to the National Strong Motion Program, spanned four counties and varied geophysical environments. Primarily employed were the Simplified Site Characterization Procedures (SSCP) as an efficient yet robust method for measuring VS30. The active-source SSCP were designed for Rayleigh-wave MASW analysis, while the passive-source methods were designed with ESAC analysis in mind. Also employed along the El Centro Array were conventional large-array MASW and ambient microtremor techniques, and HVSR site characterization techniques.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Created Date September 14, 2025
    Metadata Updated Date October 2, 2025

    Metadata Source

    Harvested from DOI USGS DCAT-US

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date September 14, 2025
    Metadata Updated Date October 2, 2025
    Publisher U.S. Geological Survey
    Maintainer
    Identifier http://datainventory.doi.gov/id/dataset/usgs-65f10f88d34e1403329842b8
    Data Last Modified 2024-05-14T00:00:00Z
    Category geospatial
    Public Access Level public
    Bureau Code 010:12
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://ddi.doi.gov/usgs-data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 1acd5411-f8bc-48af-92d5-a642328e68e8
    Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
    Harvest Source Title DOI USGS DCAT-US
    Metadata Type geospatial
    Old Spatial -122.0000, 32.5300, -114.1200, 36.0000
    Source Datajson Identifier True
    Source Hash bb3cce0db643dc85419131fc35cb6a9bc25ad65d0962874fa1bd2913554c1a36
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -122.0000, 32.5300, -122.0000, 36.0000, -114.1200, 36.0000, -114.1200, 32.5300, -122.0000, 32.5300}

    Didn't find what you're looking for? Suggest a dataset here.