Durationsustained up to 1 minute
You gain tremorsense as an imprecise sense to a range of 100 feet, but you can only sense vibrations through natural stone (not masonry, adobe, or any other manufactured edifice).
Traits
Concentrate
An action with this trait requires a degree of mental concentration and discipline.
Manipulate
You must physically manipulate an item or make gestures to use an action with this trait. Creatures without a suitable appendage can't perform actions with this trait. Manipulate actions often trigger reactions.