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Titel |
Magnetic anomalies possibly linked to local low seismicity |
VerfasserIn |
F. Masci, P. Palangio, M. Di Persio, C. Di Lorenzo |
Konferenz |
EGU General Assembly 2009
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Medientyp |
Artikel
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Sprache |
Englisch
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Digitales Dokument |
PDF |
Erschienen |
In: GRA - Volume 11 (2009) |
Datensatznummer |
250025428
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Zusammenfassung |
The INGV (Italian Istituto Nazionale di Geofisica e Vulcanologia) tectonomagnetic network
was installed in Central Italy in 1989 to investigate the magnetic anomalies possibly related to
tectonic events. The network is part of L’Aquila Geomagnetic Observatory and covers an area
extending approximately in the latitude range[41Ë – 43Ë ]N and the longitude
range [12.5Ë – 15.0Ë ]E. At the beginning of the 1990s some anomalies in the
geomagnetic field, possibly related with earthquakes occurrence, have been pointed
out, but until now no evident correlation between tectonic activity and changes in
the local magnetic field has been observed. Anyway, in the last two decades, the
network’s area has shown a low-moderate seismic activity. During 2007 low intensity
earthquakes (M - 4) occurred in the proximity of two stations of the network.
Simultaneously with these events, magnetic anomalies (ÎF - 0.5 nT) were found in the total
geomagnetic field F. Here we report the magnetic anomalies observed in the local
geomagnetic field, and the discussion about their relationship with the seismic activity. |
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