Ballenas Fault

The Ballenas Fault is a transform fault located on the seabed of the Gulf of California, extending through the Canal de Ballenas which separates the Isla Ángel de [la Guarda] from the Baja [California peninsula]. The fault is an integral part of the East Pacific Rise, linking the Delfin Basin in the north with a smaller spreading center to the south. The fault is considered the northernmost member of a grouping of four transform faults called the Guaymas Transform Fault System.
The Ballenas Fault produced a magnitude 6.9 earthquake on August 3, 2009.