Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/2270
AuthorsD'Auria, L.* 
Marotta, E.* 
Martini, M.* 
Ricciolino, P.* 
TitleSeismic and acoustic detection of a bolide airburst in the Gulf of Naples (southern Italy)
Issue Date2006
Series/Report no./111 (2006)
DOI10.1029/2005JB004254
URIhttp://hdl.handle.net/2122/2270
KeywordsNONE
Subject Classification04. Solid Earth::04.06. Seismology::04.06.99. General or miscellaneous 
04. Solid Earth::04.06. Seismology::04.06.09. Waves and wave analysis 
AbstractOn 10 September 2005 at 1711 LT (1511 UT) 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 Mount Vesuvius) and on a regional station (Mount Massico). On the basis of the seismic recordings and on acoustic phenomena reports, we relate this event to the atmospheric explosion (airburst) of a bolide about 15 km SW of Ischia at an elevation of about 11.5 km. The location has been obtained through nonlinear traveltime inversion in a realistic atmospheric model including wind effects. We show, using statistical estimators, how the traveltime pattern is due to both atmospheric winds and the bolide trajectory. Using the same reasoning we discard a human origin (supersonic jet or sea-air missile). In addition, we also propose a new algorithm for fast acoustic traveltime computation for a supersonic moving source.
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