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| Titel |
Ionospheric precursors for crustal earthquakes in Italy |
| VerfasserIn |
L. Perrone, L. P. Korsunova, A. V. Mikhailov |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 28, no. 4 ; Nr. 28, no. 4 (2010-04-12), S.941-950 |
| Datensatznummer |
250016816
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| Publikation (Nr.) |
 copernicus.org/angeo-28-941-2010.pdf |
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| Zusammenfassung |
| Crustal earthquakes with magnitude 6.0>M≥5.5
observed in Italy for the period 1979–2009 including the last one at
L'Aquila on 6 April 2009 were considered to check if the earlier obtained
relationships for ionospheric precursors for strong Japanese earthquakes are
valid for the Italian moderate earthquakes. The ionospheric precursors are
based on the observed variations of the sporadic E-layer parameters (h'Es,
fbEs) and foF2 at the ionospheric station Rome. Empirical dependencies for
the seismo-ionospheric disturbances relating the earthquake magnitude and
the epicenter distance are obtained and they have been shown to be similar
to those obtained earlier for Japanese earthquakes. The dependences indicate
the process of spreading the disturbance from the epicenter towards
periphery during the earthquake preparation process. Large lead times for
the precursor occurrence (up to 34 days for M=5.8–5.9) tells about a prolong
preparation period. A possibility of using the obtained relationships for
the earthquakes prediction is discussed. |
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