All my clients know that I insist that they take a look at earthquake insurance. It is absolutely essential to the long-term survival of your brewery. However, I will save the scary earthquake scenarios and important coverages for another blog post because I have an awesome video I found to show you.
I was Googling articles on racking system safety and happened upon a video from Western Square. They provide racking systems for breweries, wineries and distilleries. They have developed an add-on to the bottom rack with stainless steel ball bearings that help keep your barrels upright when the ground starts shaking.
As a disclaimer, I am not a geologist or physicist (believe it or not), so I cannot and am not stating that this is the only and final solution. However, it is worth a look and further study in order to increase the safety of your property and, more importantly, your employees who may be near the stacks when an earthquake happens.
If you want to geek out with more information on this (as I do), I found a study from the 14th World Conference on Earthquake Engineering from 2008 titled Earthquake Simulation and Response of Wine-Barrel Stacks.
Enjoy the video below. And thanks to vendors like Western Square that are always innovating their products.