For equipment storage and management at shaky locations, the R2 Series Seismic certified Frame Rack from Middle Atlantic does the trick.
Fully-welded, this heavy-duty two-post rack can support up to 850lbs at an IP value of 1.5 as per seismic conditions.
Numbered with #10-32 threads, the 19” rails are easy to use and provide simple installation for standard equipment. Middle Atlantic R2 Seismic Open Rack Enclosures can also accommodate a variety of cable ladders, making it easy to manage different cabling installations.