Here you find some of my calculations, predictions for major quakes that I predict will happen anytime from the average of 1 day to 2 weeks, but usually no more than 6months from my prediction date.
Simply watch the areas, within 5000km, for 14 days from the dates I posted, to see if there is any activity.
Then you are on your own, keeping records of any activity for the next 6 months, maybe someone can come up with an average.
bravenet.com