"Strange attractor like" electric seismic precursor observed prior to the Nafpactos, Greece, EQs of 18th / 22nd January, 2010 (Ms = 5.7R / 5.6R)

Abstract

Phase maps, of the earth's electric field monitored at PYR and ATH monitoring sites in Greece, were compiled for two distinct oscillating earth's electric field components long before, during and after the Nafpactos EQs in Greece (January 18th and 22nd of 2010, Ms = 5.7 / 5.6R). The selected periods of the earth's oscillating electric field were the T = 1 day and T = 14 days. The specific components were selected due to the fact that they are highly depended from the corresponding same period tidal waves (M1, K1, P1). It was found that the "strange attractor like" electric seismic precursor preceded the main seismic event for four days for the case of T = 1 day, while a much longer period of time (11 days) was observed for the case of T = 14 days. It seems that the shorter the used wavelength is the shorter is the predictive time window regarding the pending seismic event. The present work replicated earlier similar results obtained by the same methodology for past large seismic events in Greece and have already been presented in the same database. The present methodology seems to be a promising tool in short-term (in time) earthquake prediction.

11 pages, 23 figures, http://www.earthquakeprediction.gr

References in corpus (3)

• Investigation of the seismicity after the initiation of a Seismic Electric Signal activity until the main shock
• On a preseismic electric field "strange attractor" like precursor observed short before large earthquakes
• Seismic electric precursors observed prior to the 6.3R EQ of July 1st 2009, Greece and their use in short-term earthquake prediction