This strike-slip fault, which was active 50 million years ago, is similar to the San Andreas fault rumbling periodically today.
(This strike-slip fault; was; active; T:50 million years ago) (This strike-slip fault, which was active 50 million years ago; is; similar to the San Andreas fault) (the San Andreas fault; rumbling; periodically; T:today)
This strike-slip fault This strike-slip fault, which was active 50 million years ago the San Andreas fault
was is rumbling
active T:50 million years ago
similar to the San Andreas fault
periodically T:today