Every two weeks, Reginald Roberts posts a new set of earthquake forecasts on his website, NextEarthquake.com.┬áRoberts says his earthquake forecasts, which included a prediction of the earthquake that shook Hawaii on Thursday (Oct. 20), are accurate over 90 percent of the time.┬áIf Roberts is right, then all the world’s seismologists and earthquake geologists are wrong when they say earthquakes are too chaotic to be predicted. John Vidale discusses.