The Atl Fault is a right lateral-moving transform fault located on the seafloor of the southern Gulf of California. It links the Farallon Basin to the north with the Pescadero Basin to the south. All these features are part of the Gulf of California Rift Zone, the northern extension of the East Pacific Rise.

The name derives from the Nahuatl word meaning "water".

References

• A history of continental rifting at the mouth of the Gulf of California, Ness and Lyle (1981)