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Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/1840

Authors: Mele, G.*
Meloni, A.*
Palangio, P.*
Title: A tectonomagnetic effect detected in Central Italy
Issue Date: Apr-1994
Series/Report no.: 37/1
URI: http://hdl.handle.net/2122/1840
Keywords: tectonomagnetism
seismomagnetic network
seismic activity
Central Italy
Abstract: Significant variations in the absolute value of the geomagnetic field intensity related to tectonic events, as earthquakes and volcanic eruptions, have been observed in several cases. To detect such a tectonomagnetic effect related to seismic activity, a seismomagnetic network was installed by the Istituto Nazionale di Geofisica (ING) in the Abruzzi region (CentraI Italy), in July 1989. This area is being uplifting since the Pliocene. A logistic compromise between geophysical requirements and the electrified railway system tracks distribution led to the installation of five total magnetic field intensity data acquisition sites. From July 1989 to September 1992 geomagnetic intensity data were simultaneously recorded at all stations and compared to that recorded at the L'Aquila Observatory, located in the same area. A variation of about 10 nT in the absolute level of the geomagnetic field was measured at two stations located on the eastern side of the network. We suggest that the detected magnetic anomaly could resuIt from aseismic-changes in crustal stress during this time.
Appears in Collections:04.07.99. General or miscellaneous
01.03.99. General or miscellaneous
Annals of Geophysics
Papers Published / Papers in press

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