Boxer program is a revised and simplified version of several computer codes which have been written in the last 10 years to compute focal parameters of earthquakes from macroseismic data and have also been actually used to compute synthetic earthquake parameters for the “Catalogo dei Forti Terremoti in Italia dal 461 a.C. al 1990” [Boschi et al. 1995, 1997], the Catalogo Parametrico dei terremoti Italiani (CPTI) [CPTI Working Group, 1999] and to make the computation of the paper by Gasperini et al. [1999]. Release 3.3 implements an improved method to compute magnitude using a weighting scheme also including the reliability of empirical regressions for each intensity class as well as a procedure to compute coefficients of magnitude intensity relations. This new method has been actually adopted for revaluing the magnitudes of the historical seismic catalog [CPTI Working Group, 2004] used by the recent INGV initiative for the computation of the new seismic hazard map of Italy [Seismic-Hazard Map Working Group, 2004]. In this version are also included a previously undocumented option allowing to write import files for the MapInfo Graphic Information System (GIS) and a new option generating input files to plot epicenters and boxes by the General Mapping Tool [Wessel and Smith, 1991]. Other minor changes concerned the formats of input-output files. A description of the procedure to compute the azimuth and to draw the “boxes” representing the seismogenic structures can be found in Gasperini et al. [1999]. More details on the computation of epicenter and magnitude are reported by Gasperini and Ferrari [1995, 1997, 2000]. Acknowledgements The program took advantage of the contribution of Filippo Bernardini, Graziano Ferrari and Gianluca Valensise (who also suggested the name) and by important improvements made by Gianfranco Vannucci (particularly regarding the code to generate MapInfo and GMT files). References Boschi, E., G. Ferrari, P. Gasperini, E. Guidoboni, G. Smriglio and G. Valensise (1995). Catalogo dei forti terremoti in Italia dal 461 a.C. al 1980, ING-SGA, Bologna, 973 pp. and a CD-ROM. Boschi, E., E. Guidoboni, G. Ferrari, G. Valensise and P. Gasperini (1997). Catalogo dei forti terremoti in Italia dal 461 a.C. al 1990, ING-SGA, Bologna, 644 pp. and a CD-ROM. Gasperini, P., and G. Ferrari (1995). Stima dei parametri sintetici, in: E. Boschi et al. (Eds.),Catalogo dei Forti Terremoti in Italia dal 461 a.C. al 1980, ING-SGA publ., 96-111. Gasperini, P., and G. Ferrari (1997). Stima dei parametri sintetici: nuove elaborazioni, in: E. Boschiet al. (Eds.), Catalogo dei Forti Terremoti in Italia dal 461 a.C. al 1990, ING- SGA publ., 56-64. Gasperini, P., and G. Ferrari (2000). Deriving numerical estimates from descriptive information:thecomputation of earthquake parameters. Annali di Geofisica, 43, 729-746. Gasperini P., Bernardini F., Valensise G. and Boschi E. (1999). Defining Seismogenic Sourcesfrom Historical Earthquake Felt Reports, Bull. Seism. Soc. Am., 89, 94-110. CPTI Working Group (1999), Catalogo Parametrico dei Terremoti Italiani. (Boschi et al. Eds.), Editrice Compositori, Bologna, Italy, pp.88, (available at http://emidius.mi.ingv.it/CPTI/) CPTI Working Group (2004), Catalogo Parametrico dei Terremoti Italiani, versione 2004 (CPTI04). (Gasperini P., Camassi R., Mirto C. and Stucchi M. Eds.) INGV, Bologna, Italy, http://emidius.mi.ingv.it/CPTI/ Seismic-Hazard Map Working Group (Stucchi M., Akinci A., Faccioli E., Gasperini P.,Malagnini L., Meletti C., Montaldo V. e Valensise G.), (2004) Redazione della mappa dipericolosità sismica prevista dell’ordinanza PCM del 20 marzo 2003, n 3274, All. 1, INGV, Milano. disponibile a: http://zonesismiche.mi.ingv.it/documenti/rapporto_conclusivo.pdf Wessel P. and W.H.F Smith (1991). Free software helps map and display data, EOS Trans. Am.Geophys. Un., 72, 441
Gasperini P. (2004). Boxer - a Fortran program to compute source parameters of earthquakes from macroseismic data.
Boxer - a Fortran program to compute source parameters of earthquakes from macroseismic data
GASPERINI, PAOLO
2004
Abstract
Boxer program is a revised and simplified version of several computer codes which have been written in the last 10 years to compute focal parameters of earthquakes from macroseismic data and have also been actually used to compute synthetic earthquake parameters for the “Catalogo dei Forti Terremoti in Italia dal 461 a.C. al 1990” [Boschi et al. 1995, 1997], the Catalogo Parametrico dei terremoti Italiani (CPTI) [CPTI Working Group, 1999] and to make the computation of the paper by Gasperini et al. [1999]. Release 3.3 implements an improved method to compute magnitude using a weighting scheme also including the reliability of empirical regressions for each intensity class as well as a procedure to compute coefficients of magnitude intensity relations. This new method has been actually adopted for revaluing the magnitudes of the historical seismic catalog [CPTI Working Group, 2004] used by the recent INGV initiative for the computation of the new seismic hazard map of Italy [Seismic-Hazard Map Working Group, 2004]. In this version are also included a previously undocumented option allowing to write import files for the MapInfo Graphic Information System (GIS) and a new option generating input files to plot epicenters and boxes by the General Mapping Tool [Wessel and Smith, 1991]. Other minor changes concerned the formats of input-output files. A description of the procedure to compute the azimuth and to draw the “boxes” representing the seismogenic structures can be found in Gasperini et al. [1999]. More details on the computation of epicenter and magnitude are reported by Gasperini and Ferrari [1995, 1997, 2000]. Acknowledgements The program took advantage of the contribution of Filippo Bernardini, Graziano Ferrari and Gianluca Valensise (who also suggested the name) and by important improvements made by Gianfranco Vannucci (particularly regarding the code to generate MapInfo and GMT files). References Boschi, E., G. Ferrari, P. Gasperini, E. Guidoboni, G. Smriglio and G. Valensise (1995). Catalogo dei forti terremoti in Italia dal 461 a.C. al 1980, ING-SGA, Bologna, 973 pp. and a CD-ROM. Boschi, E., E. Guidoboni, G. Ferrari, G. Valensise and P. Gasperini (1997). Catalogo dei forti terremoti in Italia dal 461 a.C. al 1990, ING-SGA, Bologna, 644 pp. and a CD-ROM. Gasperini, P., and G. Ferrari (1995). Stima dei parametri sintetici, in: E. Boschi et al. (Eds.),Catalogo dei Forti Terremoti in Italia dal 461 a.C. al 1980, ING-SGA publ., 96-111. Gasperini, P., and G. Ferrari (1997). Stima dei parametri sintetici: nuove elaborazioni, in: E. Boschiet al. (Eds.), Catalogo dei Forti Terremoti in Italia dal 461 a.C. al 1990, ING- SGA publ., 56-64. Gasperini, P., and G. Ferrari (2000). Deriving numerical estimates from descriptive information:thecomputation of earthquake parameters. Annali di Geofisica, 43, 729-746. Gasperini P., Bernardini F., Valensise G. and Boschi E. (1999). Defining Seismogenic Sourcesfrom Historical Earthquake Felt Reports, Bull. Seism. Soc. Am., 89, 94-110. CPTI Working Group (1999), Catalogo Parametrico dei Terremoti Italiani. (Boschi et al. Eds.), Editrice Compositori, Bologna, Italy, pp.88, (available at http://emidius.mi.ingv.it/CPTI/) CPTI Working Group (2004), Catalogo Parametrico dei Terremoti Italiani, versione 2004 (CPTI04). (Gasperini P., Camassi R., Mirto C. and Stucchi M. Eds.) INGV, Bologna, Italy, http://emidius.mi.ingv.it/CPTI/ Seismic-Hazard Map Working Group (Stucchi M., Akinci A., Faccioli E., Gasperini P.,Malagnini L., Meletti C., Montaldo V. e Valensise G.), (2004) Redazione della mappa dipericolosità sismica prevista dell’ordinanza PCM del 20 marzo 2003, n 3274, All. 1, INGV, Milano. disponibile a: http://zonesismiche.mi.ingv.it/documenti/rapporto_conclusivo.pdf Wessel P. and W.H.F Smith (1991). Free software helps map and display data, EOS Trans. Am.Geophys. Un., 72, 441I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
