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| Titel |
Investigation of ULF magnetic anomaly during Izu earthquake swarm and Miyakejima volcano eruption at summer 2000, Japan |
| VerfasserIn |
A. Kotsarenko, O. Molchanov, M. Hayakawa, S. Koshevaya, V. Grimalsky, R. Pérez Enríquez, J. A. López Cruz-Abeyro |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 5, no. 1 ; Nr. 5, no. 1 (2005-01-05), S.63-69 |
| Datensatznummer |
250002192
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| Publikation (Nr.) |
 copernicus.org/nhess-5-63-2005.pdf |
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| Zusammenfassung |
| Results of the ULF electromagnetic emission during the Izu, 2000 earthquake
(EQ) swarm and Miyake volcano eruptions during the summer period of 2000 are
presented and analyzed. The analysis of the obtained data has been performed
in 3 main directions: traditional statistical analysis, i.e. analysis of
time dynamics of spectral density, polarization ratios and their
derivatives, Principal Component Analysis, and Fractal Analysis. The
statistical characteristics were studied at different frequency sub-bands in
a frequency range 10-3-0.3 Hz. These methods of data processing are
described and the obtained results are illustrated and discussed. Some
peculiarities of the obtained results such as the rise of the second
principal component and the rise of the fractal index can be interpreted as
possible short-time precursors. |
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