The authors of this forecast generally make far-field forecasts only for
event of Mw of 7.0 or greater. There is an exception when the event occurs
in a very unusual location, then the magnitude limit is Mw 6.5. Probably
best to use the lower limit, then you don't have to manually intervene
with the automatic program.
The Mw 6.5 would probably show some triggering anyway, as the Mw 6.5
in the Pacific Antarctic Ridge showed a very strong far-field pattern.