Then the floor bucked particularly hard, yanking him loose and tossing him into the air.

The floor bucked beneath them, almost throwing her off her feet.

At the guard station, the desk suddenly heaved upward as the floor bucked beneath.

The floor bucked, throwing Fleta to the side.

There came another explosion, and the floor bucked violently, knocking him to one knee.

The floor beneath him bucked again and he struggled to keep his feet.

They all clung together as the floor bucked and heaved under their feet.

Bruenor reasoned when the floor bucked beneath him.

The floor bucked wildly; Bruenor heard the roars of the wounded giant beneath him.

He hit the floor, his legs still under him, bucking to free them like some frantic insect as I lay on top of him.