HR: 1330h
AN: S42E-0217    [PDF]
TI: An Empirical Relation among Magnitude, Felt Area and Fault Rupture Parameters
AU: * Termini, D
EM: dtermini@unime.it
AF: Osservatorio Sismologico-Dicta - Universit… di Messina, Via Osservatorio, 4, Messina, 98121 Italy
AU: Teramo, A
EM: teramo@unime.it
AF: Osservatorio Sismologico-Dicta - Universit… di Messina, Via Osservatorio, 4, Messina, 98121 Italy
AU: Arrigo, G
EM: arrigog@unime.it
AF: Osservatorio Sismologico-Dicta - Universit… di Messina, Via Osservatorio, 4, Messina, 98121 Italy
AU: Bottari, A
EM: bottari@unime.it
AF: Osservatorio Sismologico-Dicta - Universit… di Messina, Via Osservatorio, 4, Messina, 98121 Italy
AB: A non-linear analysis of macroseismic data has been performed to determine an empirical relation between macroseismic magnitude and fault rupture parameters, based on a vectorial modelling of macroseismic intensity distribution (Teramo et al., 1995, 1997) that allows the determination of magnitude through the earthquake felt area (Termini et al., 2003). The goal is therefore to characterise an earthquake macroseismic size with respect of observational data through the felt area of earthquakes, in terms of rupture length and width not related to the fault type. Such a relation, tested on several historical and recent earthquakes which occurred in Calabria and Sicily (Southern Italy), shows a good agreement with both the parameters taken from catalogues, previous studies and the Wells and Coppersmith's formula.
DE: 1734 Seismology
SC: Seismology [S]
MN: 2003 Fall Meeting