Hi Chris - I think this is closer to the Santa Susanna fault - at least the first one, the second one was a little further away - something like 2 mi. NNE of the Santa Susana Fault for the 4.2 and 2 mi N of the Santa Suzanna Fault -

There's some interesting info on the SCEC site about the Oak Ridge fault and its relation to the Santa Susanna and Pico Thrust faults:
The surface trace of the Oak Ridge thrust is fairly easy to find on just about any map of
the area you might have -- it forms a ridge (hence its name) to the south of its trace, and
is roughly paralleled by both the Santa Clara River and California State Highway 126,
from the town of Piru to the coast, just southeast of Ventura. The Oak Ridge thrust
continues off shore, out to a point about 20 kilometers due south of Santa Barbara. The
offshore segment is associated with a definite zone of active seismicity, though the only
known Holocene surface rupture is found well onshore, between the towns of Bardsdale
and Fillmore. At its eastern end, the Oak Ridge thrust becomes progessively more
difficult to trace, and appears to be overthrust by the Santa Susana fault, thus becoming
a blind thrust fault. Indeed, the fault associated with the 1994 Northridge earthquake is
probably part of the Oak Ridge fault system, as it shares many of the characteristics of
this fault. This blind thrust fault is known either as the Pico Thrust, named for the Pico
Anticline (a geologic fold it is creating), or as the Northridge Thrust, for more obvious
reasons.

**********************************************************

Canie

• Oak Ridge Fault