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Peak ground acceleration with a 10% probability of exceedance in 50 years

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Petersen, M.D., Harmsen, S.C., Jaiswal, K.S., Rukstales, K.S., Luco, N., Haller, K.M., Mueller, C.S., and Shumway, A.M., 2018, Seismic Hazard, Risk, and Design for South America: U.S. Geological Survey data release, https://doi.org/10.5066/F7Wm1BK1.

Summary

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 peak ground acceleration with a 10 percent probability of exceedance in 50 years.

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SA_pga_10PctIn50yrs.png
“Map in PNG format”
thumbnail 3.5 MB image/png
SA_pga_10PctIn50yrs.pdf
“Map in PDF format”
1.41 MB application/pdf
SA_10PctIn50Yrs_pga_grid.dat
“Gridded ground motion data”
11.93 MB text/plain
Shapefile: SA_10PctIn50yrs_pga.zip
SA_10PctIn50yrs_pga.dbf 31.44 KB
SA_10PctIn50yrs_pga.prj 145 Bytes
SA_10PctIn50yrs_pga.shp 2.58 MB
SA_10PctIn50yrs_pga.shx 1.08 KB

Purpose

This map is intended to summarize the available quantitative information about seismic ground motion hazard for South America from geologic and geophysical sources.
Map in PNG format
Map in PNG format

Map

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  • USGS Data Release Products

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