The Andravida, Greece EQ (8/06/2008, Ms=7.0R). An "a posteriori" analysis for the determination of its location, occurrence time and magnitude parameters in terms of short-term predictability

TL;DR

This study demonstrates a method combining electric field analysis, tidal wave data, and seismic energy models to accurately determine the location, timing, and magnitude of the Andravida earthquake, supporting its potential for short-term prediction.

Contribution

The paper introduces an integrated approach using electric field data, tidal analysis, and seismic energy modeling for earthquake parameter estimation and prediction.

Findings

Accurate determination of earthquake location, time, and magnitude.

Validation of the methodology for short-term earthquake prediction.

Support for the use of electric and tidal data in seismic forecasting.

Abstract

The Andravida EQ, Greece (8/6/2008, Ms=7.0R) seismic parameters: location, time of occurrence and magnitude were determined "a posteriori" in an attempt to verify the predictability of the large EQs. The Earth's electric field, after its processing by de-noising techniques, was used, in conjunction with appropriate physical models, for the determination of the epicenter by triangulation. The time of occurrence was determined in very short-term mode by the use of the tidal waves (M1, K1) and the "strange attractor like" seismic electric precursor, while its magnitude was calculated by the application of the "lithospheric seismic energy flow model" applied on the past seismicity of the Andravida EQ regional seismogenic area. The quite accurate obtained results corroborate the validity of the methodology and suggest its use as a valuable tool for predicting large earthquakes. Key words: earthquake prediction, epicenter area, time of occurrence, earthquake magnitude, seismic potential, tidal waves.