51,731 research outputs found
Boxer - a Fortran program to compute source parameters of earthquakes from macroseismic data
No full textBoxer 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, 44
Presentazione del volumeCirene e la Cirenaica nell’antichità, a cura di L. Gasperini e S. M. Marengo
No full textIn occasione dell'inaugurazione della diciottesima edizione del Convegno su «L'Africa Romana», l'autore presenta il volume Cirene e la Cirenaica nell'antichità, a cura di L. Gasperini e S. M. Marengo
Reply to “Comment on ‘Unbiased Estimation of Moment Magnitude from Body‐ and Surface‐Wave Magnitudes’ by R. Das, H. R. Wason, and M. L. Sharma and ‘Comparative Analysis of Regression Methods Used for Seismic Magnitudes Conversions’ by P. Gasperini, B. Lolli, and S. Castellaro” by J. Pujol
No full textWe suspect that most criticisms by Pujol (2017,
hereafter, P17) were originated by a misunderstanding of our
article (Gasperini et al., 2015) that the author himself frankly
admits (“Some of the arguments made in the paper were not
completely clear to the present author” p. 11) and maybe
even by a misunderstanding of the textbook of Fuller
(1987). In the following, we will discuss in general the main
P17 criticisms, whereas detailed answers to all of them are
reported in the Appendix.Published548–5514IT. Banche datiJCR Journa
Presentazione del volume <i>Cirene e la Cirenaica nell’antichità</i>, a cura di L. Gasperini e S. M. Marengo
No full textIn occasione dell'inaugurazione della diciottesima edizione del Convegno su «L'Africa Romana», l'autore presenta il volume Cirene e la Cirenaica nell'antichità, a cura di L. Gasperini e S. M. Marengo
Comment on "General Orthogonal Regression Relations between Body-Wave and Moment Magnitudes" by Ranjit Das, H. R. Wason, and M. L. Sharma
No full textDas et al. (2013) describe a modification of the general
orthogonal regression (GOR) method (Fuller, 1987) applied
to the magnitude conversion problem that the same authors
have already published at least twice in other journals (Das
et al., 2012; Wason et al., 2012). Unfortunately, as more exhaustively
discussed in our comment to Wason et al. (2012),
published by the Geophysical Journal International (Gasperini
and Lolli, 2014), some assumptions made by the authors are
wrong and therefore their method has to be rejected
Bathymetric and seismic reflection survey of a landslide lake
No full textRecurring large scale landslides have regularly damned the natural flow of water in the high basin of the Savena river, causing large flooded areas; the most recent of these flooded areas is the Castel dell'Alpi lake ( Bologna) which formed in 1952. Bathymetric and seismic reflection profiles wre made in order to evaluate the filling rate of the lake. This note describes the measurements techniques and the results obtained. The study showed that the lake will be filled i about 40 years
Comparison of proton and electron radiation effects on dark count rate in a CMOS SPAD sensor
No full textThe aim of this work is to investigate the degradation induced by radiation on the Dark Count Rate in a monolithic SPADs detector manufactured in a 150-nm CMOS process. Two irradiation campaigns have been carried out with 16 MeV protons and 2 MeV electrons. Samples have been exposed to different displacement damage dose. Differences between the effects induced by the two irradiation particle types have been observed. The Dark Count Rate characterization as a function of the delivered fluence has been reported, providing the limits of operability of such devices in a radiation environment. Finally, possible Dark Count Rate mitigation techniques have been investigated
Correction to: Phase angle in systemic sclerosis. A marker for pulmonary function and disease severity (Clinical Rheumatology, (2020), 39, 5, (1699-1701), 10.1007/s10067-020-05034-2)
No full textThe name of the author of the original published version of this article was presented incorrectly. The author name “Antonietta Gigantea” should have been presented as “Antonietta Gigante”. This has been correctly presented above
La teoria delle stringhe e la cosmologia moderna
No full textPartendo dal confronto con la teoria gravitazionale di Newton, si introduce la visione dell'Universo introdotta dalla relatività generale di Einstein, si discutono i suoi successi e i suoi limiti, e si presentano infine le nuove prospettive suggerite dagli attuali modelli teorici delle stringhe e delle membrane
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