The first is that over the past few million years, the main trace of the San Andreas Fault has been jumping inland periodically.
(The first; is; that over the past few million years, the main trace of the San Andreas Fault has been jumping inland periodically) Context(The first is,List([0, 12))):(the main trace of the San Andreas Fault; has been jumping inland periodically; T:over the past few million years)
The first is,List([0, 12))
The first the main trace of the San Andreas Fault
is has been jumping inland periodically
that over the past few million years, the main trace of the San Andreas Fault has been jumping inland periodically
T:over the past few million years