Using the immediate burst precursor of large shocks and the distributive character of their time interval, we have studied the variation with time of the probability of immediate earthquake occurrence. The results show that the predicative level of single precursor is very low, but for multiprecursor, the comprehensive probability is able to describe the change before earthquake and a better prediction can made using it The conclusions were verified taking the Tangshan earthquake as example.
Northwestern Seismological Journal
Impending Earthquake Prediction
Probability of Prediction