EARTHQUAKE PREDICTION METHOD AND EARTHQUAKE PREDICTION DEVICE

PROBLEM TO BE SOLVED: To provide an earthquake prediction method and an earthquake prediction device that observe an electric field for indicating premonitory symptoms of an earthquake, discriminates the electric field for indicating the premonitory symptoms from an electric field, such as artificial noise and atmospherics, and detects the electric field for indicating the premonitory symptoms for predicting an earthquake. SOLUTION: It has been observed that electric field pulses occurs over a wide frequency band in a seismic center region due to flow potential following diastrophism for indicating the premonitory symptoms of an earthquake in the seismic center region, charge separation, or the like following minute cracks before a large earthquake. They are distinguished according to the difference in the spectrum of the electric fields and that of occurrence time, thus predicting a large earthquake. COPYRIGHT: (C)2008,JPO&INPIT