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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
2018-01-01
End Date
2018-12-31

Citation

Petersen, M.D., Mueller, C.S., Moschetti, M.P., Hoover, S.M., Rukstales, K.S., McNamara, D.E., Williams, R.A., Shumway, A.M., Powers, P.M., Earle, P.S., Llenos, A.L., Michael, A.J., Rubinstein, J.L., Norbeck, J.H., and Cochran, E.S., 2018, Data Release for 2018 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/F7Cf9PC4.

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.

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Attached Files

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MMI_HalfPGA_Half1Hz.png thumbnail 243.53 KB image/png
MMI_HalfPGA_Half1Hz.pdf 434.85 KB application/pdf
Extension: CEUS_1PctIn1YrAvgMMI_WithSoils.zip
CEUS_1PctIn1YrAvgMMI_WithSoils.tfw 83 Bytes
CEUS_1PctIn1YrAvgMMI_WithSoils.tif 892.9 KB
CEUS_1PctIn1YrAvgMMI_WithSoils.tif-ColorRamp.SLD 2.52 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.
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Map

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  • USGS Data Release Products

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Provenance

Created from Item #5a8c9c28e4b069906054dfba

Additional Information

Raster Extension

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