RECKONING EARTHQUAKE MAGNITUDE AND OCCURRENCE TIME FOR THE NORTHERN PORTION OF THE NORTH-SOUTH EARTHQUAKE BELT OF CHINA

A retrieval method of fuzzy information for simultaneous assessment of the time of occurrence and magnitude of a possible coming earthquake was proposed. This method was cheeked by using the seismic data since the 17th century for the northern portion of the North-South Earthquake Belt and promising result was obtained. The possibility of occurrence of a large earthquake in this zone within the next ten years was also assessed.