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Modified Mercalli Intensity based on the average of horizontal spectral response acceleration for 1.0-second period and peak ground acceleration, with 1-percent probability of exceedance in 1 year for the Central and Eastern United States

Dates

Publication Date
Start Date
2017-01-01
End Date
2017-12-31

Citation

Petersen, M.D., Mueller, C.S., Moschetti, M.P., Hoover, S.M., Shumway, A.M., McNamara, D.E., Williams, R.A., Llenos, A.L., Ellsworth, W.L., Michael, A.J., Rubinstein, J.L., McGarr, A.F., and Rukstales, K.S., 2017, 2017 One-Year Seismic Hazard Forecast for the Central and Eastern United States from Induced and Natural Earthquakes: U.S. Geological Survey data release, https://doi.org/10.5066/F7RV0KWR.

Summary

This data set represents the results of calculations of hazard curves for a grid of points with a spacing of 0.05 degrees in latitude and longitude. It represents the average Modified Mercalli Intensity (MMI) with a 1-percent probability of exceedance in 1 year. Using a topographic-based soil classification method, the ground motions are amplified for soil type. The MMI values are the average of the MMI values obtained by converting peak ground acceleration to MMI and 1.0-second spectral response acceleration to MMI. The data are for the Central and Eastern United States and are based on the one-year model.

Contacts

Attached Files

Click on title to download individual files attached to this item.

MMI_HalfPGA_Half1Hz.png thumbnail 143.43 KB
Extension: CEUS_1PctIn1YrAvgMMI_WithSoils.zip
CEUS_1PctIn1YrAvgMMI_WithSoils.tfw
“TIFF world file”
83 Bytes
CEUS_1PctIn1YrAvgMMI_WithSoils.tif
“TIFF image”
895.39 KB
CEUS_1PctIn1YrAvgMMI_WithSoils.tif-ColorRamp.SLD
“Color ramp”
2.53 KB

Purpose

This map is intended to provide a more robust estimate of Modified Mercalli Intensity (MMI) with a 1-percent probability of exceedance in 1 year, by averaging the MMI values obtained from peak ground acceleration hazard curves and hazard curves for 1.0-second spectral response acceleration.

Additional Information

Raster Extension

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