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USGS web services were down for some period of time and as a result this tool wasn't operational, resulting in timeout error. <br />USGS web services are now operational so this tool should work as expected. <br />24-8009 <br />2039 N Victoria Dr, Santa Ana, CA 92706, USA <br />Latitude, Longitude: 33.7640067, -117.8708476 <br />Date 10/23/2024, 10:40:22 AM <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 1.319 MCER ground motion. (for 0.2 second period) <br />S1 0.47 MCER ground motion. (for 1.0s period) <br />SMS 1.583 Site-modified spectral acceleration value <br />SM1 null -See Section 11.4.8 Site-modified spectral acceleration value <br />SDS 1.055 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 0.556 MCEG peak ground acceleration <br />FPGA 1.2 Site amplification factor at PGA <br />PGAM 0.667 Site modified peak ground acceleration <br />TL 8 Long-period transition period in seconds <br />SsRT 1.319 Probabilistic risk-targeted ground motion. (0.2 second) <br />SsUH 1.42 Factored uniform-hazard (2% probability of exceedance in 50 years) spectral acceleration <br />SsD 1.563 Factored deterministic acceleration value. (0.2 second) <br />S1RT 0.47 Probabilistic risk-targeted ground motion. (1.0 second) <br />S1UH 0.508 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 0.647 Factored deterministic acceleration value. (Peak Ground Acceleration) <br />PGAUH 0.556 Uniform-hazard (2% probability of exceedance in 50 years) Peak Ground Acceleration <br />CRS 0.929 Mapped value of the risk coefficient at short periods <br />CR1 0.925 Mapped value of the risk coefficient at a period of 1 s <br />CV 1.364 Vertical coefficient <br />10/23/24, 10:40 AM U.S. Seismic Design Maps <br />https://www.seismicmaps.org 1/2 <br />2039 N Victoria Drive <br />#24/28/2025