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Authors: D’Auria, L.* 
Marotta, E.* 
Martini, M.* 
Ricciolino, P.* 
Title: 10th September 2005: a bolide airblast in the Gulf of Naples (Southern Italy).
Issue Date: 15-Mar-2006
Keywords: bolide airblast
gulf of Naples
Subject Classification01. Atmosphere::01.02. Ionosphere::01.02.05. Wave propagation 
04. Solid Earth::04.06. Seismology::04.06.99. General or miscellaneous 
Abstract: On 10th September 2005 at 17:11 local time (15:11 GMT) a loud boom was heard on the Ischia island. A clear seismic signal was also recorded by the seismic monitoring network of the Neapolitan volcanic areas (Ischia, Campi Flegrei and Mt. Vesuvius) and on a regional station (Mt. Massico). On the base of the seismic recordings and on acoustic phenomena reports, we relate this event to the airblast of a bolide at about 15 Km SW of Ischia at an elevation of about 11.5 Km. The location has been obtained through probabilistic non-linear traveltime inversion in a realistic atmospheric model including wind eff ect. We will show, using statistical estimators, how the traveltime pattern is due to both atmospheric winds and bolide trajectory. Using the same reasoning we discard a human origin (supersonic jet or sea-air missile). In addition, we propose also a new algorithm for a fast acoustic traveltime computation for a moving source.
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