From Pathfinder #195: Heavy is the Crown, which isn't enabled.

Repelling Surge

HAZARD 9

Stealth +20 (master)

Description A shockwave of energy surges out from the room's center.

Disable DC 29 Arcana (expert) to fool the wards, DC 31 Thievery (master) to disable the wards, or Dispel Magic (5th rank; counteract DC 28) to counteract the wards

Repel (arcane, force)

Trigger A creature that isn't a Rivethun practitioner enters the room

Effect The trap deals 5d4+12 force damage to the triggering creature (DC 32 basic Fortitude save). On a failed save, they're additionally knocked back 10 feet.

Reset Automatic

Pathfinder #195: Heavy is the CrownOGL