Then about 25 million years ago the San Andreas Fault began rifting California apart, sliding northward.
(the San Andreas Fault; sliding northward; ) (the San Andreas Fault; began; rifting California apart; T:Then; T:about 25 million years ago) Context(the San Andreas Fault began,List([32, 59))):(the San Andreas Fault; began rifting apart; California)
the San Andreas Fault began,List([32, 59))
the San Andreas Fault the San Andreas Fault the San Andreas Fault
sliding northward began began rifting apart
rifting California apart T:Then T:about 25 million years ago
California