Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/7163
AuthorsDi Lorenzo, C.* 
Palangio, P.* 
Santarato, G.* 
Meloni, A.* 
Villante, U.* 
Santarelli, L.* 
TitleNon-inductive components of electromagnetic signals associated with L’Aquila earthquake sequences estimated by means of inter-station impulse response functions
Issue Date6-Apr-2011
Series/Report no.4/11 (2011)
DOI10.5194/nhess-11-1047-2011
URIhttp://hdl.handle.net/2122/7163
KeywordsMagnetic field measurements
electromagnetic noise
L'Aquila 2009 earthquake
Subject Classification04. Solid Earth::04.02. Exploration geophysics::04.02.04. Magnetic and electrical methods 
04. Solid Earth::04.04. Geology::04.04.99. General or miscellaneous 
04. Solid Earth::04.04. Geology::04.04.08. Sediments: dating, processes, transport 
AbstractOn 6 April 2009 at 01:32:39 UT a strong earthquake occurred west of L’Aquila at the very shallow depth of 9 km. The main shock local magnitude was Ml = 5.8 (Mw=6.3). Several powerful aftershocks occurred the following days. The epicentre of the main shock occurred 6 km away from the Geomagnetic Observatory of L’Aquila, on a fault 15 km long having a NW-SE strike, about 140 , and a SW dip of about 42 . For this reason, L’Aquila seismic events offered very favourable conditions to detect possible electromagnetic emissions related to the earthquake. The data used in this work come from the permanent geomagnetic Observatories of L’Aquila and Duronia. Here the results concerning the analysis of the residual magnetic field estimated by means of the inter-station impulse response functions in the frequency band from 0.3 Hz to 3 Hz are shown.
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