This video gives gives recommendations for designing equipment to withstand earthquakes. The topics & slides links are given at: https://blog.vibrationdata.com/seismic/. See also: https://www.youtube.com/watch?v=wN5fjtHnhWA
https://www.youtube.com/watch?v=wuQXWnSnKwQ
https://www.youtube.com/watch?v=ViJSyHgANYk
https://www.youtube.com/watch?v=q7feC-tX1hI