Concerning these forecast regions
Based on the historical and past scientific documents, in January 2005 Dr. Satoru Ohya (Oyo Corporation, Japan) and Professor Kerry Sieh (USA) forecast three regions where earthquake will occur in near future. Like their forecast, an earthquake with magnitude of 8.7 Richter scale occurred near the Nias Island, Sumatra, one of their forecast regions, in March 28, 2005. Scientists could give trustable forecast for this event. Therefore, though the earthquake cannot be predicted, its tendency could be forecast