Tsunamis are a real risk when you’re on the coast in The Ring of Fire – actually, pretty much anywhere near an ocean. If you feel an earthquake, it’s a really good idea to head for high ground – don’t bother waiting for things to happen. And, of course, if you see the ocean suddenly disappear, run. Fast. For high ground.
But living in an RV creates some additional issues: you have the ability to flee, with your home, if you have enough risk, yes. But it’s also quite impossible to differentiate between earthquakes and youthquakes.