Open AccessSelf-potential time series analysis in a seismic area of the Southern Apennines: preliminary results
Author(s) -
G. Di Bello,
V. Lapenna,
Claudio Satriano,
Valerio Tramutoli
Publication year - 1994
Publication title -
annals of geophysics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 60
eISSN - 2037-416X
pISSN - 1593-5213
DOI - 10.4401/ag-4162
Subject(s) - series (stratigraphy) , geology , residual , seismology , time series , noise (video) , period (music) , statistics , paleontology , algorithm , mathematics , computer science , physics , artificial intelligence , acoustics , image (mathematics)
The self-potential time series recorded during the period May 1991 - August 1992 by an automatic station, located in a seismic area of Southern Apennines, is analyzed. We deal with the spectral and the statistical features of the electrotellurie precursors: they can play a major role in the approach to seismic prediction. The time-dynamics of the experimental time series is investigated, the cyclic components and the time trends are removed. In particular we consider the influence of external noise, related to anthropic activities and meteoclimatic parameters, and pick out the anomalies from the residual series. Finally we show the preliminary results of the correlation between the anomalies in the time patterns of self-potential data and the earthquakes which occurred in the area