First the term redefined:
Quebrada break [kay-brah’-dah]
A variation of the corte: a sudden turn in direction, generally done by holding the follower for several beats (or syncopating) and bending her at the waist – often in a back-and-forth action to double time.
Like the corte, the quebrada derives from the African candombe, wherein people would dance rhythmically and all of a sudden everyone would stop in the current position for a beat or two and then continue.
Videos of the Quebrada
Quebrada – Gustavo Naveira and Giselle Anne
Quebrada – Horacio Godoy & Cecilia Garcia