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USGS web servi ces we re do wn fo r so m e p e ri od of ti m e and as a resul t th i s too l wasn't ope ra ti ona l , resul ti ng i n ti meou t erro r. <br />USGS we b servi ce s are n ow ope rati onal so thi s to o l sh oul d work as e xpecte d. <br />1995 S Standard Av e , Santa Ana, CA 92707, USA <br />Latitude , Long itu de : 33.7223933, -117.8553474 <br />Date 5 /1 4/2 024 , 12:52:21 PM <br />Design Code Refere nce Doc ument ASCE7-16 <br />Ris k Category II <br />Site Class D - Defa ul t (See Secti on 11 .4.3) <br />Type Value Desc ription <br />SS 1 .2 7 6 M CER g ro u nd m oti o n . (fo r 0.2 second pe ri od) <br />S1 0 .4 5 6 M CER g ro u nd m oti o n . (fo r 1.0s pe ri od) <br />SMS 1 .5 3 1 Si te-m o di fi ed sp ectral accel erati o n val ue <br />SM1 n ul l -Se e S ecti on 11.4.8 Si te-m o di fi ed sp ectral accel erati o n val ue <br />SDS 1 .0 2 Nu m eri c sei sm i c d esi gn val u e at 0.2 se con d SA <br />SD1 n ul l -Se e S ecti on 11.4.8 Nu m eri c sei sm i c d esi gn val u e at 1.0 se con d SA <br />Type Va lue De scription <br />SDC nu l l -See Se cti o n 11.4.8 Sei sm i c de si gn categ o ry <br />Fa 1.2 Si te a m p l i fi ca ti on factor a t 0.2 se cond <br />Fv nu l l -See Se cti o n 11.4.8 Si te a m p l i fi ca ti on factor a t 1.0 se cond <br />PGA 0.539 M CEG pe a k groun d a cce l e rati on <br />FPGA 1.2 Si te a m p l i fi ca ti on factor a t PGA <br />PGAM 0.646 Si te m od i fi e d peak g ro und accel erati o n <br />T L 8 Lo n g-peri o d transi ti on peri o d i n seco n ds <br />SsRT 1.276 Proba b i l i sti c ri sk-targeted groun d m o ti on. (0 .2 se con d) <br />SsUH 1.37 Fa cto re d u ni fo rm -haza rd (2% pro bab i l i ty of e xce eda n ce i n 5 0 yea rs) sp ectra l accel erati o n <br />SsD 1.629 Fa cto re d d eterm i ni sti c accel e ra ti on va l u e . (0.2 seco nd) <br />S1RT 0.456 Proba b i l i sti c ri sk-targeted groun d m o ti on. (1 .0 se con d) <br />S1UH 0.492 Fa cto re d u ni fo rm -haza rd (2% pro bab i l i ty of e xce eda n ce i n 5 0 yea rs) sp ectra l accel erati o n . <br />5/14/24, 12:54 PM U.S. Seis mic Des ign Maps <br />https ://w w w .s eis mic maps .org 1/3 <br />1895 & 1995 S Standard <br />Ave1/7/2025