Sylos Labini et al. (1993)
On the basis of a stratigraphic reconstruction they interpret the Sulmona 
basin as a half-graben. The NW-trending, SW- dipping Mt. Morrone normal fault 
controls the development of erosion and deposition processes inside the basin. 
NE-dipping antithetic normal faults are also recognised on the SW side of the 
basin, whereas no faults have been. The activity of the Mt. Morrone fault is 
expressed by tilting of the Middle Pleistocene alluvial "Sulmona land-surface". 
However, the fault is capped by younger alluvial fans that do not seem affected 
by tectonic features. This observation is suggesting the fault to be no longer 
active or much less active than in the past.

Cavinato and Miccadei (1995)
By means of geological and structural analysis they reconstruct the 
tectonic evolution of the Sulmona intermontane basin and its relationship 
to deposition and erosion processes throughout the Early-Late Pleistocene. 
According to the basin shape and architecture, also retrieved from 
geophysical prospecting, the basin formation appears to be controlled 
by the Mt. Morrone Fault, located on the NE side of the basin itself. The 
Authors also describe several secondary tectonic features (NW-SE, E-W, NE-SW 
trending normal faults), that may participate in the activity of the Mt. Morrone 
fault, producing as much as 10 m displacement and 15 down-slope tilting in 
Middle to Late Pleistocene lacustrine, palustrine and alluvial fan deposits.

Vittori et al. (1995)
They study the activity of the Mt. Morrone normal fault, bounding to the 
east the Sulmona basin. The fault strikes NW-SE, dips SW and is about 20 km 
long. The overall geomorphic features and the tectonic setting of the Sulmona 
basin are comparable to those of the adjacent inter-Apennine basins, suggesting 
that the Mt. Morrone fault could be responsible not only for the recent tectonic 
evolution of the area but also for the occurrence of moderate to large 
earthquakes. However, the historical and instrumental seismicity do not show 
clear evidence of activity in this area. Additional geological evidences 
of recent activity for this fault are as follows: presence of bedrock 
fault-scarps; faulting (showing several meters of offset) and tilting of 
Middle-Late Pleistocene deposits; damming of small fluvial channels. The 
slip-rate of the Mt. Morrone fault, which was estimated on the basis of 
displaced lacustrine deposits, equals 0.1 mm/y.

Galadini and Galli (2000)
These investigators estimate a vertical slip rate of about 0.50-0.66 mm/y 
since Middle Pleistocene for the southwestern branch of the Morrone Fault.
The estimate is based from the observation of slope-derived Early Pleistocene 
breccias suspended 350-450 m above the present level of the Sulmona Plain.
