Abstract
On October 10, 1995, an ML= 4.8 (ING) earthquake occurred in the region of Lunigiana (northwestern Italy). The shock was felt over a large area and produced significant damage. We performed a macroseismic survey and damage zonation and assessed a maximum intensity VII MCS in the epicentral area. The damage pattern, that we investigated in detail for some of the villages in the most heavily damaged area, emphasises the role of surface geology in amplifying the effects. Topographic effects and near-surface geology are largely responsible for broadening the damage area. Given the moderate size of the earthquake, many of the macroseismic observations, including rotations of objects and the propagation of visible waves in the ground, are suggestive of amplification phenomena.
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Azzara, R., Delladio, A., De Sortis, A., Orsini, G., 1995, The October 10th, 1995 earthquake in Lunigiana (Northern Italy), Proc. 5th Intern. Conf. on Seismic Zonation, Nice, pp. 2195–2202.
Bard, P. Y., 1982, Diffracted waves and displacement field over two dimensional elevated topographies, Geophys. J. R. Astr. Soc. 71, 731–760.
Bard, P. Y., 1994, Effects of surface geology on ground motion: recent results and remaining issues. In: Duma, G. (ed.), Proc. 10th Europ. Conf. on Earthq. Eng. 1, Vienna, pp. 305–323.
Bernini, M., 1991, Le strutture estensionali della Lunigiana (Appennino Settentrionale): proposta di un modello deformativo, Proc. Tic. Sc. Terra 34, 29–38 (in Italian).
Borcherdt, R. D., 1970, Effects of local geology on ground motion near San Francisco Bay, Bull. Seism. Soc. Am. 60, 29–61.
Borcherdt, R. D. and Glassmoyer, G., 1992, On the characteristics of local geology and their influence on ground motions generated by the Loma Prieta earthquake in the San Francisco Bay region, Bull. Seim. Soc. Am. 82, 603–641.
Bouchon, M. and Aki, K., 1982, Strain, tilt, and rotations associated with strong ground motion in the vicinity of earthquake faults, Bull. Seism. Soc. Am. 72, 1717–1738.
Chávez-García, F. J., Sánchez, L. R. and Hatzfeld, D., 1996, Topographic site effects and HSVR. A comparison between observations and theory, Bull. Seism. Soc. Am. 86, 1559–1573.
Chiu, H. C. and Huang, H. C., 1992, Effects of the canyon topography on ground motions at the Fetsui damsite, Bull. Seism. Soc. Am. 82, 1646–1660.
Eva, E. and Pastore, S., 1993, Revisione dei meccanismi focali dell'Appennino Settentrionale, Proc. 12th GNGTS annual meeting, Rome, pp. 147–160 (in Italian).
Fabbri, C., Losito, G., Pratesi, G., Pugi, F. and Trova, A., 1997. Relazione tra gli eventi sismici della Lunigiana del 10 ottobre 1995 e danni prodotti ad edifici in muratura a Ceserano e Canova, Proc. of the Symp. La stabilita’ del suolo in Italia: zonazione della sismicita'-frane, Accademia Nazionale dei Lincei, Roma, pp. 179–186.
Fah, D, Suhadolc, P. and Panza, G. F., 1993, Variability of seismic ground motion in complex media: the case of a sedimentary basin in the Friule (Italy) area, J. Appl. Geophys. 30, 131–148.
Fäh, D. and Panza G. F., 1994, Realistic modelling of observed seismic motion in complex sedimentary basins, Annali di Geofisica 37, 1771–1798.
Frankel, A. and Vidale, J., 1992, A three dimensional simulation of seismic waves in the Santa Clara Valley, California, from a Loma Prieta aftershock, Bull. Seism. Soc. Am. 82, 2045–2074.
Frepoli, A. and Amato, A., 1997, Contemporaneous extension and compression in the Northern Apennines from earthquake fault plane solutions, Geophys. J. Int., 129, 368–388.
Funiciello, R., Lombardi, L., Marra, F. and Parotto, M., 1995, Seismic damage and geological heterogeneity in Rome's Colosseum area: are they related? Annali di Geofisica 38, 927–938.
Geli, L., Bard., P. Y. and Julien, B., 1988, The effect of topography on earthquake ground motion: a review and new results, Bull. Seism. Soc. Am. 78, 42–63.
Gordon, D. W., Bennet, T. J., Herrmann, R. B. and Rogers, A. M., 1970, The South-Central Illinois earthquake of November 9, 1968: macroseismic studies, Bull. Seism. Soc. Am. 60, 953–971.
Grünthal, G. (ed.), 1993, European Macroseismic Scale 1992. In: Cahiers du Centre Européen de Géodynamique et de Séismologie 7, Luxembourg, 79 pp.
Hough, S. E., Seeber, L., Rovelli, A., Malagnini, L., De Cesare, A., Selvaggi, G. and Lerner-Lam, A., 1992, Ambient noise and weak-motion excitation of sediment resonances: results from the Tiber valley, Italy, Bull. Seism. Soc. Am. 82, 1186–1205.
Lomnitz, C., 1970, Some observations of gravity waves in the 1960 Chile earthquake, Bull. Seism. Soc. Am. 60, 669–670.
Margheriti, L., Wennerberg, L. and Boatwright, J., 1994, A comparison of Coda and S-wave spectral ratios as estimates of site response in the Southern San Francisco Bay area, Bull. Seism. Soc. Am. 84, 1815–1830.
Margottini, C., Ambraseys, N. N. and Screpanti, A., 1993, La magnitudo dei terremoti Italiani del XX secolo, ENEA Intern. Rep., Rome (in Italian).
Moczo, P., Rovelli, A., Labák, P. and Malagnini, L., 1995, Seismic response of the geologic structure underlying the Roman Colosseum and 2-D resonance of a sediment valley, Annali di geofisica 38, 939–956.
Nechtschein, S., Bard, P. Y., Gariel, J. C., Mèneroud, J. P., Dervin, P., Cushing, M., Gaubert, C., Vidal, S. and Duval, A. M., 1995, A topographic effect study in the Nice region, Proc. Fifth intern. Conf. on Seismic Zonation, Nice, Ouest Ed. Press. Acad., pp. 1067–1074.
Nunziata, C., Fäh, D. and Panza, G. F., 1995, Mitigation of seismic hazard of a megacity: the case of Naples, Annali di Geofisica 38, 649–662.
Oddone, E., 1916, Gli elementi fisici del grande terremoto marsicano-fucense del 13 gennaio 1915, Boll. Soc. Sism. It. 19–20, 71–215 (in Italian).
Palandri, S., 1985, Sull'influenza delle condizioni geologiche locali nella determinazione del rischio sismico: un esempio in Lunigiana, Mem. Soc. Geol. It. 30, 79–87 (in Italian).
Postpischl, D. (ed.), 1985, Catalogue of Italian earthquakes from 1000 to 1980. In: CNR, Quaderni della Ricerca Scientifica 114 2B, 239 pp.
Rovelli, A., Caserta, A., Malagnini, L. and Marra, F., 1994, Assessment of potential strong ground motions in the city of Rome, Annali di Geofisica 37, 1745–1770.
Rovelli, A., Malagnini, L., Caserta, A. and Marra, F., 1995, Using 1-D and 2-D modelling of ground motion for seismic zonation criteria: results for the city of Rome, Annali di Geofisica 38, 591–606.
Su, F., Aki, K., Teng, T., Zeng, Y., Koyanagi, S. and Mayeda, K., 1992, The relation between site amplification factor and surficial geology in Central California, Bull. Seism. Soc. Am. 82, 580–602.
Tertulliani, A. and Riguzzi, F., 1995, Earthquakes in Rome during the past one hundred years, Annali di Geofisica 38, 581–590.
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Tertulliani, A., Maramai, A. Macroseismic evidence and site effects for the Lunigiana (Italy) 1995 Earthquake. Journal of Seismology 2, 209–222 (1998). https://doi.org/10.1023/A:1009734620985
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DOI: https://doi.org/10.1023/A:1009734620985