Laserfiche WebLink
4/28/23, 4:40 PM U.S. Seismic Design Maps <br />https://www.seismicmaps.org 1/3 <br />1919 N Spurgeon St, Santa Ana, CA 92706, USA <br />Latitude, Longitude: 33.76238610000001, -117.8649262 <br />Date 4/28/2023, 4:40:13 PM <br />Design Code Reference Document ASCE7-16 <br />Risk Category II <br />Site Class D - Default (See Section 11.4.3) <br />Type Value Description <br />SS 1.314 MCER ground motion. (for 0.2 second period) <br />S1 0.468 MCER ground motion. (for 1.0s period) <br />SMS 1.577 Site-modified spectral acceleration value <br />SM1 null -See Section 11.4.8 Site-modified spectral acceleration value <br />SDS 1.051 Numeric seismic design value at 0.2 second SA <br />SD1 null -See Section 11.4.8 Numeric seismic design value at 1.0 second SA <br />Type Value Description <br />SDC null -See Section 11.4.8 Seismic design category <br />Fa 1.2 Site amplification factor at 0.2 second <br />Fv null -See Section 11.4.8 Site amplification factor at 1.0 second <br />PGA 0.553 MCEG peak ground acceleration <br />FPGA 1.2 Site amplification factor at PGA <br />PGAM 0.664 Site modified peak ground acceleration <br />T L 8 Long-period transition period in seconds <br />SsRT 1.314 Probabilistic risk-targeted ground motion. (0.2 second) <br />SsUH 1.413 Factored uniform-hazard (2% probability of exceedance in 50 years) spectral acceleration <br />SsD 1.517 Factored deterministic acceleration value. (0.2 second) <br />S1RT 0.468 Probabilistic risk-targeted ground motion. (1.0 second) <br />S1UH 0.506 Factored uniform-hazard (2% probability of exceedance in 50 years) spectral acceleration. <br />S1D 0.6 Factored deterministic acceleration value. (1.0 second) <br />PGAd 0.629 Factored deterministic acceleration value. (Peak Ground Acceleration) <br />PGAUH 0.553 Uniform-hazard (2% probability of exceedance in 50 years) Peak Ground Acceleration <br />1919 N Spurgeon <br />St06/15/23