A Good Start
The quake bracing at the corners of these shelving units provides a start on protecting people working in this area. Still needed: a method of securing materials on the shelves.
A simple and fairly unobtrusive seismic brace is a good place to start. Later, as time and money permit, material restraints can be added to the shelves.
Solutions run the gamut from Industrial to Invisible
It is usually less expensive to brace during the construction process.
Exhaust Duct Bracing
The Federal Emergency Management Agency has a wealth of information on disaster planning, including Earthquake Preparation. Information is available on the Web at http://www.fema.gov, or by calling 1-800-480-2520.
Facilities Services Emergency Management:
The FS Emergency Management Office provides online information on earthquake preparedness and response.