I have become a fan of James Berkland. He has a book about him "The Man that Predicts Earthquakes"
He uses the moon position and tidal forces to predict where quakes will happenhttp://www.syzygyjob.com/
His book http://www.amazon.com/Man-Who-Predicts-Earthquakes-Geologist-How/dp/1591810361
is very interesting.
He references the 1964 Good Friday quake, he predicted to SF World series quake and the 2004 Tsunami.
Like anything else, (like my barometer theory) he misses a few but it is very interesting