Publication Date:
2017-04-04
Description:
In this paper, a high-resolution digital elevation
model (DEM) of the Ischia Island has been created, and a
digital terrain analysis has been carried out to identify of
morphostructural elements of this landscape. Ischia is an
active volcano located in the Western sector of the Gulf of
Naples that is characterized by historical and recent
volcano-tectonic activity. The local kinematics is unclear,
and so identification of tectonic lineaments might elucidate
recent tectonic processes. We identify morphostructural
features using geomorphic parameters derived from analysis
of the high-resolution DEM. Successively, the comparison
with known geologic features provides validation of the
extracted morphotectonic data.We found that one of the main
directions of the morphostructural lineaments extracted is
consistent with the regional NE–SW extensional stress field;
moreover, the lineaments on the northern flank of Mt.
Epomeo are strictly correlated with the mapped faults that
have a history of strong and moderate earthquakes. The
technique implemented for this study area allowed us to
identify new original morphostructural lineaments in a
reproducible way that may be useful for investigating various
landscapes where field survey is not possible. Indeed, the
extracted lineaments represent potential active faults near the
northern coast of the Ischia Island, where both seismicity and
intense urbanization delineate a high seismic risk.
Description:
Published
Description:
73-82
Description:
3.2. Tettonica attiva
Description:
N/A or not JCR
Description:
reserved
Keywords:
Digital elevation model . Morphostructural lineaments . Tectonic geomorphology. Residual topographic surface
;
04. Solid Earth::04.04. Geology::04.04.03. Geomorphology
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
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