Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/7875
AuthorsMasci, F.* 
Di Persio, M.* 
TitleRetrospective investigation of geomagnetic field time-series during the 2009 L'Aquila seismic sequence
Issue DateJan-2012
Series/Report no./ 530-531 (2012)
DOI10.1016/j.tecto.2012.01.008
URIhttp://hdl.handle.net/2122/7875
KeywordsGeomagnetic field
Magnetic anomalies
Earthquake precursors
Seismology
Subject Classification04. Solid Earth::04.05. Geomagnetism::04.05.99. General or miscellaneous 
04. Solid Earth::04.05. Geomagnetism::04.05.04. Magnetic anomalies 
04. Solid Earth::04.06. Seismology::04.06.99. General or miscellaneous 
AbstractThis paper reports the analyses of ULF (Ultra-Low-Frequency) geomagnetic field observations coming from the Geomagnetic Observatory of L'Aquila during the period 2008–2009. This period includes the L'Aquila 2009 seismic sequence, where the main shock of 6 April heavily damaged the medieval centre of the town and its surrounding area, causing 308 deaths, more than 1000 injuries and about 60,000 displaced people. Recently, several publications have documented the observation of precursory signals which occurred before the 6 April earthquake (e.g. Eftaxias et al., 2009, 2010), while others do not find any pre-earthquake anomaly (e.g. Villante et al., 2010; Di Lorenzo et al., 2011). In light of this, the goal of this study is to carry out further retrospective investigations. ULF magnetic field data are investigated by means of conventional analyses of magnetic polarization ratio, improved magnetic polarization ratio, and fractal analysis. In addition, total geomagnetic field data coming from the INGV Central Italy tectonomagnetic network have also been investigated, using the simple inter-station differentiation method. Within the limits of these methods, no magnetic anomalous signal which may be reasonably characterized as a precursor of the L'Aquila earthquakes has been found.
Appears in Collections:Papers Published / Papers in press

Files in This Item:
File Description SizeFormat 
Masci Tectonophysics 2012.pdf1.8 MBAdobe PDFView/Open
Show full item record

Page view(s)

258
Last Week
0
Last month
checked on Jun 28, 2017

Download(s)

69
checked on Jun 28, 2017

Google ScholarTM

Check

Altmetric