%0Computer Program %TJSAC %XJSAC is a Java implementation of the Seismic Analysis Code (SAC2000, https://github.com/LLNL/SAC2000). It is intended to bring the most commonly used features of SAC2000 up to date with modern standards, support parallelized computation where possible, and implement improvements in algorithms and numerics. %ADodge, Douglas %ABarno, Justin %Rhttps://doi.org/10.11578/dc.20231030.3 %Uhttps://www.osti.gov/doecode/biblio/115167 %CUnited States %D2023 %GEnglish %2USDOE National Nuclear Security Administration (NNSA) %1AC52-07NA27344 2023-06-05