+/-4 km on depth. With the focal mechanism showing the fault to be nearly vertical or nearly horizontal. If focal mechanism is accurate (and there is only 1 on the NEIC site), I think the vertical one is more likely. Would not be too surprising if there was a surface rupture if in the upper couple of km. interior Australia had larger ground-rupturing quakes: I recall they were thrust and I recall they were near Tennant Creek (wherever that is).
Chris