seismic building zone map of the United States
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.

Mobile homes are subject to the greatest risk of damage becuase foundation systems for mobile homes often just consists of blocking and strapping to hold the home to the ground.

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 house 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 Fransico ground failure occured near the fault line and on land filled in, near San Fransisco Bay, far from the fault line.  The land between the two zones was largely uneffected by the earthquake.   Consult your local building official for information about local soil conditions.  

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