0.2-second spectral response acceleration (5% of critical damping) with a 50% probability of exceedance in 50 years

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. This particular data set is for horizontal spectral response acceleration for 0.2-second period with a 50 percent probability of exceedance in 50 years.

Data e Risorse

Campo Valore
accessLevel public
bureauCode {010:12}
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datagov_dedupe_retained 20220721212438
identifier USGS:59c294bee4b091459a61d36a
metadata_type geospatial
modified 20200818
old-spatial {"type": "Polygon", "coordinates": [[[-85.0, -70.0], [-85.0, 15.0], [ -20.0, 15.0], [ -20.0, -70.0], [-85.0, -70.0]]]}
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 2d75ae72fdfd5e2cfa81c9333f5c7f4d83421aa1
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-85.0, -70.0], [-85.0, 15.0], [ -20.0, 15.0], [ -20.0, -70.0], [-85.0, -70.0]]]}
theme {geospatial}
Gruppi
  • AmeriGEOSS
  • National Provider
  • North America
Tag
  • amerigeo
  • amerigeoss
  • argentina
  • bolivia
  • brazil
  • chile
  • ckan
  • colombia
  • earthquake
  • ecuador
  • french-guiana
  • geo
  • geoss
  • guyana
  • hazard
  • national
  • north-america
  • panama
  • paraguay
  • peru
  • risk
  • seismic
  • south-america
  • suriname
  • trinidad-and-tobago
  • united-states
  • uruguay
  • usgs-59c294bee4b091459a61d36a
  • venezuela
isopen False
license_id notspecified
license_title License not specified
maintainer Ken Rukstales
maintainer_email rukstales@usgs.gov
metadata_created 2025-11-20T05:18:10.438999
metadata_modified 2025-11-20T05:18:10.439003
notes 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. This particular data set is for horizontal spectral response acceleration for 0.2-second period with a 50 percent probability of exceedance in 50 years.
num_resources 2
num_tags 29
title 0.2-second spectral response acceleration (5% of critical damping) with a 50% probability of exceedance in 50 years