Gridded risk-targeted spectral response acceleration data and 84th-percentile spectral acceleration data used to calculate the Risk-Targeted Maximum Considered Earthquake (MCER) spectral response accelerations of the 2020 NEHRP Recommended Seismic Provisions, and 2022 ASCE/SEI 7 Standard.

Description

The Risk-Targeted Maximum Considered Earthquake (MCER) spectral response accelerations of the 2020 NEHRP Recommended Seismic Provisions and 2022 ASCE/SEI 7 Standard are derived from the downloadable data files. For each spectral period and site class, the MCER spectral response acceleration (S_aM) is calculated via the following equation:
S_aM = min[ S_aRT , max( S_a84th , S_aDLL ) ]
where
S_aRT = risk-targeted spectral acceleration
S_a84th = 84th-percentile spectral acceleration
S_aDLL = deterministic lower limit spectral acceleration

Resources

Name Format Description Link
Original Metadata XML The metadata original format Open resource
Digital Data XML Landing page for access to the data Open resource

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