Elmi et al. (1987)
These workers analyse geometrical characteristics of alluvial terraces 
(convergence vs. divergence of terrace treads) and of the underlying erosion 
surface carved into the local bedrock to derive differential vertical 
movements between two areas to the north and south of the Conca river. 
According to the estimated age of the alluvial terraces the northern area 
subsided and the southern one was uplifted during Middle-Late Pleistocene. 
The two areas are separated by a tectonic line, namely "Linea del Conca", 
which is supposed to have been active since the Early Pliocene.

Nanni and Vivalda (1987)
They analyse the evolution of the fluvial network in the Marche region. On 
the basis of a geometric reconstruction of the erosion surface buried beneath 
the alluvial deposits and observations on the migration of river channels, 
these authors suggest that the fluvial network may be controlled by tectonic 
activity. NE oriented faults may control the drainage pattern whereas minor 
channel northward migrations, in the proximity of the coast, may have been 
driven by a growing anticline with a NE-SW trending axis. The presence of 
an anticline near the coastline is also revealed by the rising of the buried 
thalweg of rivers. Two main anticlines have been detected, the first in the 
area of Falconara Marittima (northern Marche); the second at Porto San 
Giorgio (southern Marche).

Nesci et al. (1990)
This paper analyses stratigraphic and sedimentary features of alluvial 
terraces of the Metauro and Foglia rivers to derive the tectonic behaviour of 
the Adriatic margin in the Marche region over the Middle Pleistocene - 
Holocene. As result the area seems to be affected by regional uplift combined 
with local tectonic processes. Specifically, the seaward convergence of the 
terrace treads is interpreted as an effect of local tilting.

Elmi et al. (1991)
They analyse geomorphic features of the alluvial terrace sequences of the 
Conca, Foglia, Metauro, and Esino rivers. The convergence of the terrace 
treads is interpreted as being the effect of significant tilting throughout the 
Middle Pleistocene  Holocene. The authors also question the validity of 
previous interpretations that link the progressive entrenchment of the river 
channels into the SE side of the valleys to the activity of NE-SW trending 
faults. The proposed explanation is that this entrenchment could be 
explained either as a response to differential rock erodibility or as an effect of 
differential exposition to solar radiation of the two valley sides. Both factors 
could increase the solid load of tributary streams on the NW side and in turn 
the development of alluvial fans that progressively make the main channel 
to migrate south-eastward.

Favali et al. (1995)
Thismpaper presents a revision of some aspects of damage distribution 
caused by the 1930 earthquake in Senigallia. Refraction seismic prospecting is 
used to derive the mechanical properties of the intervening soils and rocks. 
The results suggest that site effects where localised at the scale of tens to 
hundred of metres of distance and that permanent surface deformation may 
also have occurred along with resonance phenomena.
