Review of Historical Earthquakes in the Lower Middle Ages: Earthquakes of the XIV and XV Centuries in Catalonia (NE Spain) - Historical Seismology: Interdisciplinary Studies of Past and Recent Earthquakes - page 150

Fig. 4 Intensity values (EMS-98) assigned to localities affected by the earthquake of May 25th,
1448 and macroseismic epicentre. PD = probable damage, D = damage

been reported as previous hydro-meteorological effects. A joint analysis of docu-
mentary sources referred to the earthquake and to the previous hydro-meteorological
episodes yield to a more reliable site intensity values (Fig. 4).
Many localities do not have assigned a point intensity value because of the lack
of reliable information, and because of the possible cumulative effects of the 1428
earthquake. The earthquake claimed 7 lives in 4 separate localities, which increases
the uncertainty when evaluating the macroseismic parameters.
Although the epicentral intensity of this earthquake is only VII-VIII, its proxim-
ity to the city of Barcelona (about 30 km) makes the study of this event relevant for
the risk assessment of this densely populated coastal area.

7 Main Results and Discussion

The review of the earthquakes of the period under study allowed us to make a clas-
sification of the events into 48 earthquakes, 46 false events and 4 doubtful ones. The
date of some earthquakes and localities affected by these events underwent some
modifications with respect to earlier studies. From these, 8 events have epicentral
intensity I o >

VI (EMS-98). The values of their parameters are given in Table 2.
The quality index assigned to the different epicentre locations range from B
(about 10 km accuracy) to D (20-50 km). The quality index assigned to Io is C for all