Historical research performed in the 1990s has updated previous compilation
s of liquefaction-induced phenomena that occurred during the last millenium
in Italy. Liquefaction indications are reported in Italy for earthquakes w
ith I-o > 5-6 (MCS) and M-s greater than or equal to 4.2, 90% of the cases
falling within 50 km of the epicenter. The recently re-evaluated seismic pa
rameters of the Italian historical earthquakes, together with the location
of 317 indications of liquefaction features, provide a relatively complete
database, permitting the author to highlight the distribution of intensity/
magnitude values versus epicentral distance. In paleoseismic analyses these
relationships may be considered a tool in evaluating the minimum energy of
an earthquake that induced liquefaction features. (C) 2000 Elsevier Scienc
e B.V. All rights reserved.