Investigating non-uniform scaling behavior in Ultra Low Frequency (ULF) earthquake-related geomagnetic signals

Details Investigating non-uniform scaling behavior in Ultra Low Frequency (ULF) earthquake-related geomagnetic signals Investigating non-uniform scaling behavior in Ultra Low Frequency (ULF) earthquake-related geomagnetic signals

Apr 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008e%26psl.268..219t&link_type=abstract

Earth and Planetary Science Letters, Volume 268, Issue 1-2, p. 219-224.

Physics

7

Scientific paper

The scaling properties of the time dynamics of 2000 2001 ULF geomagnetic data (in the frequency range between 1 mHz and 10 Hz) observed at Izu Peninsula in Japan were investigated. On the basis of detrended fluctuation analysis (DFA), which is a powerful method to detect scaling in non-stationary time series, deviations from uniform power-law scaling were identified and quantified. Our results suggest that a significant non-uniform scaling behavior in ULF geomagnetic data could be related to the occurrence of intense seismic clusters. These first results could be useful in the framework of short-term earthquake prediction.

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