The definition of some of the standards used for evaluating local effects and optimizing the relative macroseismic procedures are critically considered, also from the different interpretative points of view to have come out of the « Earthquake Catalogue » work group of the Italian Geodynamics Projetc (PFG). Particular stress has been laid on the significance and reliability of the main macroseismic parameters which depend most directly on the investigative criteria used and on their ability to characterize efficiently the interaction of earthquakes and environment.Essentially, the analysis is of critical considerations and field-observations, the fruit of macroseismic investigations carried out prevalently in the Calabro-Peloritan Arc region. The seismic intensity, the use of macroseismic scales, the investigatory criteria, the macroseismic field and its Research financed by the CNR (National Research Council) under the Italian Geodynamics Project, contract no. 79.00777.89.
Le variazioni d'inclinazione e la sismicità che hanno preceduto il forte terremoto del Friuli del 6 Maggio 1976 P. F. BIAGI(»)-P. CALOI(**)-M. MIGANI (***)-M. C. SPADEA (****) Ricevuto il 30 Settembre 1970Riassunto. -In questa prima parte del lavoro, che ci proponiamo di dedicare alla disastrosa crisi sismica che ha colpito il Friuli nel 1970, ci limitiamo a delineare le caratteristiche presismiche, che hanno preceduto la forte scossa del 0 Maggio 1970.Nelle premesse, vengono richiamati gli studi su fenomeni presismici, iniziati in Italia già negli anni Cinquanta.Summary. -In the first part of the work, which we have decided upon dedicating to the disastrous seismic crisis that struck the Friuli area in 1970, we will limit ourselves to delineating the pre-seismic characteristics that preceded the strong shock of May 6th, 1976. In the introduction, reference is to made to the studies of pre-seismic phenomena started in Italy in the 1950's.1 -PREMESSE 1.1 -In un lungo lavoro sulle caratteristiche sismiche e geodinamiche della Val Padana -intesa in senso lato, come comprensiva della fossa adrio-padana e di tutti gli alvei e bacini dei fiumi che sfociano nell'alto Adriatico, nonché dei monti che la limitano -fra
More about severe frost as a triggering agent of microseismic activity in the neighbourhood of large Dam amI about the geodynamical conditions leading lo il r. CALOI (*) -][. :'orIGA};I (**) -M. O. SPADEA (*) Reecive,l on .\ray 28th, l !l73
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