From Pathfinder Society Scenario #1-24: Lightning Strikes, Stars Fall, which isn't enabled.

Steaming Fields (7-8)

HAZARD 9

Stealth +17 (trained) to see steam vents erupting

Description A field of warm mist covers an open plain. Pockets of highly pressurized steam lie Hidden in the earth; pressure releases jets of steam.

Disable DC 30 Survival (expert) twice to navigate a safe path

AC 10

Steam Jet

Trigger A creature fails a skill check to navigate through the steaming field

Effect Several jets of pressurized steam erupt, dealing 3d6+10 bludgeoning damage and 3d6+10 fire damage to creatures within 30 feet of the ground (DC 27 basic Reflex).

Pathfinder Society Scenario #1-24: Lightning Strikes, Stars FallOGL