Hmmmm. I’m not being facetious, but if you have earthquakes “rolling in from Mexico”, you might want to consider a Geology 101 course at your local community college. ...
I certainly don't want to embarrass you in front of your friends. I have found that one should not assume another person has no knowledge on a topic. I was first licensed in 1976. As one gentleman to another, I'd recommend you keep your sarcasm out of your content. One may not know how to take it.
I live in a normal wood stick home built in the 1970s as I recall. I continue to have doubts considering some of the equipment is tall enough to come just short of the ceiling, maybe in about the 6.5 or 7 ft level. It is my belief that it needs to be bolted down at at least two points to keep it from collapsing on its own weight and then the equipment there in not being usable during an emergency situation.
If it should be bolted down should it use heavy rubber straps able to handle the weight or should it be hard bolted to the actual 16-in offsets? That means it would sway with the walls of the house.
During the last earthquake that traveled up here I lost tiles in my custom kitchen countertop as well as in my downstairs shower. It completely cracked them. I can only imagine what it would do to electrical equipment if a local earthquake struck.
If you attended a more targeted earthquake seminar that last about a week you would possibly gain the same knowledge I have. I have attend a geology course on my own. But I have also attended an in depth multi-day seminar for police officers and fire fighters to teach us how to respond operationally to major earthquakes, as well as our technical SAR services. I'm a graduate of the advanced course, if it matters to you. I'm also retired but still possess the information.
These courses do talk about bolting equipment down in the home but nothing specific to much heavier amateur radio equipment. Things like bolting down your anwar. Or the beautiful solid oak Hutch that might be in your dining room. You know, the one that's made of wood and almost all glass on the upper part? Serious damage if that thing falls over.
I can tell you from first hand experience having lived in Sierra Madre California when the earthquake struck on June 28th and the fault line went directly through the city. As the co-organizer I can tell you that we almost had to cancel the 4th of July parade. My living room was trashed and the house knocked off the foundation. The entertainment center probably would not have tumbled over onto the floor if it had been attached to the wall.
Some of that new trash furniture you buy actually comes with tiny nails for both ends of a piece of plastic that's supposed to act as a strap and keep your entertainment center from falling over during an earthquake Completely ridiculous.
It is in that vein that I asked my question. How to do it better and more appropriately for equipment that needs to survive the earthquake.
Attached you will find images of the Cerro Prieto fault that travels from south of the Mexican border up into the San Bernardino Mountains where it joins the San Andreas fault. I live on the San Andreas fault. If you follow the fault line from the Mexican border it will come up through the Salton Sea, up through the ravine that the 15 freeway follows up into Riverside, and then up into San Bernardino County and into the mountains where as mentioned it joins the San Andreas fault in Holcomb Valley. Holcomb Valley is long known for a second mass gold strike exodus.
This fault is what created this ravine between the 15 freeway millions of years ago. The large red square shows the recent 7.2 earthquake that occurred in the Mexicali area that traveled north along the fault line and up into Running Springs california.

