COMMENTS

The Database includes in the Montereale Source all faults reported by Blumetti (1995) 
and Cello et al. (1998) as having been activated during the 2 February 1703 earthquake. 
We confirm this hypothesis for all these ruptures with the only exception of the 
Cittareale Fault (Blumetti, 1995), that we included in the Norcia Source based on 
structural considerations.


OPEN QUESTIONS

1) Is there a true direct relation between the historical reports of surface ruptures 
following the 1703 earthquake and the inferred seismogenic sources?

2) On the basis of the Blumettis (1995) observation (that only one
surface faulting event occurred on the Arischia fault since about 30 Kyr and two 
events occurred since 186 Kyr), the expected recurrence time for this source appears 
much longer than that computed for the Norcia Source (5,000 or 10,000 y). What is a 
reliable estimate for the average recurrence time of this source?

3) Is the 1703 earthquake the post-29,6901,110 B.P. event recognised by Blumetti 
(1995)?

4) What is the tectonic regime that drives the Montereale Source? Is this source part 
of a crustal, N-striking, strike-slip shear zone (Cello et al. 1997), or is an extensional 
feature as suggested by most geophysical studies (break-out analyses, focal solutions 
and paleoseismology) and other geological studies (e.g. Calamita et al., 1994, among 
many others)?
