Answer:
The Jalisco block is presumed to be rifting away from the North American plate
Step-by-step explanation:
The Jalisco block is presumed to be rifting away from the North American plate. The Colima and Tepic-Zacoalco grabens, which bound the Jalisco block to the east and north, respectively, are apparently the boundaries where rifting is taking place in a complex and highly faulted environment.