Gars (1983)
He studies the recent tectonics of the Gargano promontory and highlights an 
episode of important uplift accompanied by some extension lasting up to the 
deposition of the Lower Pleistocene "tuffs" (sandstone). According to this paper 
a N20 compressional event follows as suggested also by reverse faulting contact 
110-striking and 47NE-dipping of the Mesozoic bedrock over the "tuffs". In 
this interpretation, at present the compression appears to have rotated to 145-
170.

Suhadolc et al. (1983)
They present a statistical investigation of the seismicity of the broad Gargano 
region and recognise the main seismogenic alignments in the area. They also 
conclude that there is a different seismic behaviour in the eastern and western 
part of the Promontory and that there is a relation, in terms of temporal 
behaviour, between the Gargano and Irpinia region. 

Funiciello et al. (1988) and Funiciello et al. (1991) 
These papers present a reconstruction of the tectonic evolution of the Gargano 
promontory since the Paleogene. The authors recognise a first extensional phase 
on faults N40-50W that dissected a wide anticline forming the bulk of the 
promontory; a successive phase associated to the activation of the Mattinata 
fault as a left-lateral strike slip structure, and finally an extensional 
phase on faults E-W, NW-SE and NE-SW. They do not find evidence for present 
activity on the Mattinata fault but for a fault south of it.

Ortolani and Pagliuca (1988)
On the basis of meso- and macro-structural analysis they describe the tectonic 
setting and the history of deformation of the Gargano promontory. They conclude 
that the present setting of the promontory is related to a sequence of different 
tectonic phases: the Eocene-Oligocene "dinaric" phases, and the Miocene and 
Plio-Quaternary Apenninic phases. They also propose a reconsideration of the 
Gargano seismicity under this light.

Caldara and Palmentola (1991)
They describe the marine terraces that indent the promontory slopes highlighting 
that the Gargano promontory experienced important uplift since Mio-Pliocene.

Panza et al. (1991)
These workers develop a model for the 1627 earthquake source by computing 
synthetic isoseismal from historical macroseismic data following a methodology 
tested on recent earthquakes. They propose a 310-striking, 45-dipping thrust 
fault with focal depth 15 or 20 km. 

Argnani et al. (1993)
Through the interpretation of seismic reflection profiles they highlight the 
main structures existing offshore the Gargano promontory. The easterly 
prolongation of the Mattinata fault surely appears in the offshore data although 
it does not have any morphological evidence at the sea bottom. This interpreted 
by the authors as the consequence of the fact that the main activity on this 
structure occurred in Eocene times and was completed by Early Pliocene. At 
present no important horizontal or vertical slip can be recognised. On the 
contrary, to the north, the Tremiti Islands zone seems to show Quaternary 
activity. However, the authors point out that both zones are preferential 
location for seismicity.

Favali et al. (1993a) and Favali et al. (1993b)
These papers interpret the Gargano area as an active deformational belt 
controlled by two main systems: the dextral Tremiti Islands system to the north, 
and the sinistral Mattinata system to the south. These systems are the 
preferential location for instrumental seismicity and recent seismic swarms. No 
attempt in locating the source of the 1627 earthquake is presented.

Doglioni et al. (1994) and Doglioni et al. (1996)
By analyzing the Apenninic foreland study the tectonic setting of the Gargano 
promontory they conclude that it results to be controlled by two dextral 
tectonic lines: the Tremiti Islands and Mattinata lines. According to these 
authors the Gargano promontory is located at the northern edge of the southern 
part of the foreland that, in contrast with the central Adriatic ended with 
subsidence after Pliocene-Early Pleistocene and is now experiencing important 
uplift. No discussion about seismicity is presented.

Boschi et al. (1995)
Based on contemporary descriptions and successive works (see references 
therein), summarize all the data available on the damage, tsunami, and land 
perturbations produced by the 1627 earthquake. On the basis of all this 
information they infer a Me of 6.7.

Tinti and Piatanesi (1996) and Tinti et al. (1997)
These papers present the numerical modeling of the 1627 tsunami and discuss it 
in relation with the possible location of the seismogenic source. By using 
slightly different techniques the authors attempt the modeling of the source 
both inland and offshore. Faults were always hypothesized as a 35-km long, 20 
km-wide plane with 1.3-m uniform coseismic slip. Different location and geometry 
of the sources was tested: inland N-S and E-W faults centered in the Fortore 
valley at the Ripalta latitude, whereas offshore E-W and NE-SW faults centered 
slightly north of the Tremiti Islands, at the latitude of the Fortore estuary. 
They demonstrate that even a fault completely inland is able to generate a 
tsunami. The authors conclude that two of the tested structures have the highest 
potential to produce a tsunami, the E-W north side up south of Lesina and N-S 
west side up along the Fortore River. Realistically they admit not to have a 
unique solution for the seismic source and underline that all the simulations 
substantially underestimate the size of the tsunami wave as derived by 
contemporary documentation.

Guerricchio and Pierri (1998 and references therein of same authors) 
These papers define the main fault systems of the Gargano area on the basis of 
Landsat imagery analysis, aerial photos, and subsurface data. These systems have 
a broad spectrum of strikes NW-SE, ENE-WSW, and E-W as well as various 
kinematics. They also analyse the seismicity of the broad Gargano area and point 
out that there is potential for M7 earthquakes such as the 1627 but, that the 
several events located along the Mattinata fault show only small to moderate 
magnitude and no M>6 event is expected along this feature

Salvi et al. (1999)
This paper presents the results of a multidisciplinary study aimed at the 
implementation of a geochemical GIS. The main tectonic features of the Gargano 
area are identified in the Mattinata fault, considered left-lateral, the 
Candelaro and Rignano faults. Geochemical anomalies in groundwaters are found 
along the Mattinata fault, the Candelaro river, and on a WSW lineament south of 
the Lesina Lake. On the basis of a high-resolution DEM they find morphotectonic 
landforms not corresponding to known faults. Among them the most interesting is 
a 26 km-long, E-W striking, south side down alignment named Apricena-
Sannicandro. This corresponds to a lithological contact between Miocene 
calcarenites and upper Pleistocene alluvial plain deposits to the west, whereas 
to the East it becomes the contact between Miocene and Giurassic rocks. 
According to the authors geomorphology is suggestive of present activity of this 
alignment and hypothesize this may be the source for the 1627 earthquake.
