Ever been though an earthquake while caving?

I recently went into my first cave, well it was actually a lave tube it was a park so frequently visited with many people there. But none the less it was a pretty fun adventure. At one point I did need to crawl on my belly to get under a low area and all I was thinking was if an earthquake happens right now I am going to be squished between the ceiling and the floor. Then once I got that our of my head I got to to a dead end within the lave tube and I could think was an earthquake is going to happen and cave this lave tube in and I am going to be stuck in this hole forever haha..