Articles | Volume 23, issue 3
https://doi.org/10.5194/nhess-23-1007-2023
https://doi.org/10.5194/nhess-23-1007-2023
Research article
 | 
06 Mar 2023
Research article |  | 06 Mar 2023

Inferring the depth and magnitude of pre-instrumental earthquakes from intensity attenuation curves

Paola Sbarra, Pierfrancesco Burrato, Valerio De Rubeis, Patrizia Tosi, Gianluca Valensise, Roberto Vallone, and Paola Vannoli

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Cited articles

Albarello, D. and D'Amico, V.: Attenuation relationship of macroseismic intensity in Italy for probabilistic seismic hazard assessment, B. Geofis. Teor. Appl., 45, 271–284, 2004. a, b
Ambraseys, N.: Intensity-attenuation and magnitude-intensity relationships for northwest European earthquakes, Earthq. Eng. Struct. D., 13, 733–778, 1985. a
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Bakun, W. H. and Scotti, O.: Regional intensity attenuation models for France and the estimation of magnitude and location of historical earthquakes, Geophys. J. Int., 164, 596–610, https://doi.org/10.1111/j.1365-246X.2005.02808.x, 2006. a
Bakun, W. H. and Wentworth, C. M.: Estimating earthquake location and magnitude from seismic intensity data, B. Seismol. Soc. Am., 87, 1502–1521, 1997. a
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Short summary
Earthquakes are fundamental for understanding how the earth works and for assessing seismic risk. We can easily measure the magnitude and depth of today's earthquakes, but can we also do it for pre-instrumental ones? We did it by analyzing the decay of earthquake effects (on buildings, people, and objects) with epicentral distance. Our results may help derive data that would be impossible to obtain otherwise, for any country where the earthquake history extends for centuries, such as Italy.
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