lol No problem.
The quake was a 5.4, and we were about a mile from the epicenter, so use that for what it's worth.
He was fine while I was grooming him and getting him saddled, as far as I can remember. On the way to the arena (about 100 yards away from the barn), he started getting unusually agitated. He's normally a very mellow horse, doesn't balk/shy at much of anything, and certainly doesn't misbehave just to misbehave...but he WOULD NOT go through the gate into the arena. It was really bizarre. He planted his feet, clenched his teeth, and wouldn't move. I thought he was just being stubborn and smacked him on the butt with the reins (I was leading him), and he finally went into the ring. (This was about 30 minutes before the quake)
Dusty was normally the type of horse to stay RIGHT on the rail all the time. He was a show horse, so, go figure. That night? Not so much. I couldn't keep him on the rail to save my life. He kept trying to go towards the middle of the arena, and every time we'd GO to the middle of the arena (i.e., if I was making a small circle or whatever), he'd stop. He was very sluggish, didn't want to do much more than a walk, couldn't get him to canter to save my life.
About 20 minutes before the quake actually happened, he started acting like he had something in his ear. His ears flopped and he kept shaking his head. I got off of him three or four times, checked his ears, couldn't find anything, etc. This was my first clue that something "odd" was going on. I mean, he was behaving strangely anyway, but THAT was just weird.
We continued with our ride, and he kept getting more and more agitated. I swear it was like he had the worst case of ADD in the history of horses. He was normally a very focused horse, always responded to cues instantly, but that night, he was anywhere but there. I thought if we just kept working, he'd settle down and focus. I FINALLY got him to canter, and right as we came around one corner, it started hailing. Dusty almost jumped out of his skin, so I rolled my eyes and decided, "Fine, if we'll stop and wait out the hail, THEN you will work."
We went into the middle of the arena and stopped. That's when I realized it wasn't hailing...there wasn't a cloud in the sky, actually (it was after dark, BTW)...it just SOUNDED like it was hailing, because the aluminum roof was making all kinds of racket. The ground wasn't moving much yet, I couldn't even feel it moving, but Dusty started shaking (like, scared shaking, not earthquake shaking), and I went "oh shit". I decided I'd be a bit safer on the ground (whatever was happening, I didn't have a clue yet), and RIGHT when my foot hit the ground, the ground moved out from under me. (That's an odd feeling in and of itself)
Dusty planted his feet and stared at me (I swear there was some "I told you so, you moron" in his eyes, but mostly he was TERRIFIED). There seems to be this misconception that a horse will run during an earthquake, but they don't: they won't move.
When it was over, we went back down to the barn. He was shaky and agitated, broke out in a sweat, and didn't really calm down completely until hours later. (He never quite forgave me, either, and we both almost jumped out of our skin any time the arena roof creaked after that)
It wasn't a massive earthquake by any means, but he DEFINITELY knew it was coming.