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| Titel |
Application of a wavelet technique for the detection of earthquake signatures in the geomagnetic field |
| VerfasserIn |
L. Alperovich, V. Zheludev, M. Hayakawa |
| 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 ; 1, no. 1/2 ; Nr. 1, no. 1/2, S.75-81 |
| Datensatznummer |
250000024
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| Publikation (Nr.) |
 copernicus.org/nhess-1-75-2001.pdf |
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| Zusammenfassung |
| We developed an
algorithm especially adapted to single-station wavelet detection of
geomagnetic events, which precede or accompany the earthquakes. The
detection problem in this situation is complicated by a great variability
of earthquakes and accompanied phenomena, which aggravates finding
characteristic features of the events. Therefore we chose to search for
the characteristic features of both "disturbed" intervals
(containing earthquakes) and "quiet" recordings. In this paper
we propose an algorithm for solving the problem of detecting the presence
of signals produced by an earthquake via analysis of its signature against
the existing database of magnetic signals. To achieve this purpose, we
construct the magnetic signature of certain earthquakes using the
distribution of the energies among blocks, which consist of wavelet packet
coefficients. |
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