If you're underground when an earthquake hits, you're screwed.
Do worms and moles die in earthquakes? Because that would be the more equivalent scenario.
The point is, Dema's logic is wrong. How does it affect both side's field creatures but only one sides pillars/towers? That is where I could drive buses through the loopholes in this idea. Sorry, but I just disagree with this idea.
No, think of it this way.
There are two communities near each other, the city of townsville, and the village of citytown. An earthquake hits the city of townsville.
The buildings in the city of townsville topple, they're right on top of the earthquake, and the shockwaves cause any underground tunnels to collapse, killing most large burrowed creatures. But if you're far enough away, and sturdy enough, you just might survive. Hence, while the humongous beast buried underneath the village of citytown might have a hard time surviving it's approaching death by suffocation, the shrieker who's a business man in the skyscraper in the village of citytown might not even get a break from his desk job.
Mixed analogies aside, I think it'd just overcomplicate the card. Leave as is please.