Quaking Slither
HAZARD 14In an area without significant underground space, the ground becomes greater difficult terrain, and creatures on it are Off-Guard and Clumsy 2 for 1 round.
In areas with existing underground spaces (like sewers, sinkholes, or catacombs), fissures open up in the ground. Creatures in the area tumble into the resulting 80-foot-deep hole unless they succeed at a DC 40 Reflex save.
In bays, on beaches, and in other relatively substantial but shallow bodies of water, the tremors create dangerous waves. Creatures in the water or within 60 feet of the waterline are struck by waves that deal 10d8 bludgeoning damage (DC 35 basic Reflex save). On a critical failure, a creature is instantly swept 60 feet out to sea and 60 feet under the water's surface.