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    • Modified Mercalli Intensity based on peak ground acceleration, with a 10% probability of exceedance in 50 years

    Metadata Updated: July 6, 2024

    A seismic hazard model for South America, based on a smoothed (gridded) seismicity model, a subduction model, a crustal fault model, and a ground motion model, has been produced by the U.S. Geological Survey. These models are combined to account for ground shaking from earthquakes on known faults as well as earthquakes on un-modeled faults. This data set represents the results of calculations of hazard curves for a grid of points with a spacing of 0.1 degrees in latitude and longitude. It represents Modified Mercalli Intensity (MMI) with a 10% probability of exceedance in 50 year. The maps and data were derived from PGA ground-motion conversions of Worden et al. (2012), and include soil amplification based on a topographic proxy of Allen and Wald (2009), and site amplification based on Seyhan and Stewart (2014) relationships.

    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 June 1, 2023
    Metadata Updated Date July 6, 2024

    Metadata Source

    Harvested from DOI EDI

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date June 1, 2023
    Metadata Updated Date July 6, 2024
    Publisher U.S. Geological Survey
    Maintainer
    @Id http://datainventory.doi.gov/id/dataset/0f0d235fca7ff01556c711d9debbfcfb
    Identifier USGS:59c99bdae4b017cf313f116b
    Data Last Modified 20200818
    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://datainventory.doi.gov/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 c6eb7e80-5328-45cf-8768-5dd9665341f5
    Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
    Harvest Source Title DOI EDI
    Metadata Type geospatial
    Old Spatial -85.05,-70.05,-19.95,15.05
    Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
    Source Datajson Identifier True
    Source Hash 7abb0c94cd2c102b98f7a42a542c5b265192e19a35799a2da0af3230cadcec65
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -85.05, -70.05, -85.05, 15.05, -19.95, 15.05, -19.95, -70.05, -85.05, -70.05}

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