There's no real way to earthquake proof something unless you have a hovering or floating building. However, I've read that some engineers are already considering this type of new construction though much of it is still in the theories phase outside of real hoverboards like the Hendo. Source: over 1 year ago

Maglev trains and prototype hoverboards already use this principle. Source: about 3 years ago

I recently acquired a classic Boardup and now I'm looking at options for upgrading it into an electric skateboard. However, most of the relevant posts on this topic are 2-3 years old, and due to the pandemic, some popular e-motor kits are currently unavailable. I'm looking for a solution that would also allow me to travel with the board abroad when needed since the fold-up feature is so convenient. Two potential... Source: 11 months ago

I have this one and it fits under the back seat. Source: over 1 year ago

If you can license their design and offer a better solution than their current electric offering, that'll be sweet. https://goboardup.com/. Source: over 2 years ago