Memphis, Shelby County Seismic Hazard Maps and Data Download
Graphical Formats
Graphical Formats
August 2004
To view and print the PDF files from your browser, download the Adobe Acrobat Reader.
File sizes of eps = approximately 2-4 Mb each
File sizes of pdf = approximately 1-1.5 Mb each
File sizes of jpg = approximately 100 Kb each
File sizes of poster pdf = approximately 1.4 Mb each
Definitions:
PE = probability of exceedance,
PGA = peak ground acceleration,
SA = spectral acceleration,
acceleration unit = %g
Probabilistic Maps
Peak Acceleration (%g) with 10% Probability of Exceedance in 50 Years: eps, pdf, jpg, poster
Peak Acceleration (%g) with 2% Probability of Exceedance in 50 Years: eps, pdf, jpg, poster
0.2 sec Spectral Acceleration (%g) with 10% Probability of Exceedance in 50 Years: eps, pdf, jpg, poster
0.2 sec Spectral Acceleration (%g) with 2% Probability of Exceedance in 50 Years: eps, pdf, jpg, poster
1.0 sec Spectral Acceleration (%g) with 10% Probability of Exceedance in 50 Years: eps, pdf, jpg, poster
1.0 sec Spectral Acceleration (%g) with 2% Probability of Exceedance in 50 Years: eps, pdf, jpg, poster
Deterministic (Scenario) Maps
Peak Acceleration (%g) for a M7.7 earthquake located northwest of Memphis, on a fault coincident with the southern linear zone of modern seismicity: eps, pdf, jpg, poster
0.2 sec Spectral Acceleration for a M7.7 earthquake located northwest of Memphis, on a fault coincident with the southern linear zone of modern seismicity: eps, pdf, jpg, poster
1.0 sec Spectral Acceleration (%g) for a M7.7 earthquake located northwest of Memphis, on a fault coincident with the southern linear zone of modern seismicity: eps, pdf, jpg, poster
Peak Acceleration (%g) for a M6.2 earthquake located northwest of Memphis, on a fault at the closest end of the southern linear zone of modern seismicity: eps, pdf, jpg, poster
0.2 sec Spectral Acceleration for a M6.2 earthquake located northwest of Memphis, on a fault at the closest end of the southern linear zone of modern seismicity: eps, pdf, jpg, poster
1.0 sec Spectral Acceleration (%g) for a M6.2 earthquake located northwest of Memphis, on a fault at the closest end of the southern linear zone of modern seismicity: eps, pdf, jpg, poster
Other Maps
MMI Hazard for a M7.7 earthquake located northwest of Memphis, on a fault coincident with the southern linear zone of modern seismicity, geology included: gif
PGA Hazard for a M7.7 earthquake located northwest of Memphis, on a fault coincident with the southern linear zone of modern seismicity, geology included: gif
Memphis/Shelby County average shear-wave velocity over 30 meters: gif
Gridded Data Values
August 2004
ASCII files of gridded points used to make maps - lon, lat, value (%g)
1st line in each file gives ground-motion parameter and the probability of exceedance
0.01 degree grid spacing in latitude and longitude
File sizes = approximately 30 Kb each
ArcInfo Point Shapefiles
August 2004
.zip format
How to use these files to create a surface
0.01 degree grid spacing in latitude and longitude
File sizes = approximately 130 Kb each
