For the most current and accurate information consult your local building department.  As a general rule -- newer construction is more likely it is to withstand an earthquake.  The reason for this is that building codes have become stricter as time has past.  We  now have a better idea of what works.

The other major consideration is the ground your building is on.  It is important to know where fault lines are located, but remember that about half of the major destructive earthquakes occur on faults that no one knew about (Kobe - Northridge). It is also important to understand the kind of ground your equipment is built upon.  Soils that are subject to mass failure can result in damage occurring far from an earthquake.  In the last major earthquake near San Francisco ground failure occurred near the fault line and on land filled in, near San Francisco Bay, far from the fault line.  The land between the two zones was largely unaffected by the earthquake.   Consult your local building official for information about local soils conditions.