Tectonics and Seismicity in the periAdriatic Zones: Implications for Seismic Hazard in Italy

Mantovani, Enzo; Tamburelli, Caterina; Babbucci, Daniele; Viti, Marcello; Cenni, Nicola

doi:10.5772/intechopen.94924

Cited by 8 publications

(7 citation statements)

References 63 publications

(57 reference statements)

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“…The various attempts at identifying such decoupling (e.g., [247][248][249] and references therein) suggest very different solutions located in several Adriatic zones and related to various strain regimes, which clearly testifies the scarce significance of the tectonic evidence about possible decouplings. The possible connection of the short-term kinematic behavior of the Adriatic and Periadriatic zones with the time-space distribution of major earthquakes is discussed by [253,254].…”

Section: From the Middle Pleistocene To The Present (Northward Acceleration Of Adria Belt Parallel Shortening And Uplift In The Apenninesmentioning

confidence: 99%

Basic Role of Extrusion Processes in the Late Cenozoic Evolution of the Western and Central Mediterranean Belts

et al. 2021

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Tectonic activity in the Mediterranean area (involving migrations of old orogenic belts, formation of basins and building of orogenic systems) has been determined by the convergence of the confining plates (Nubia, Arabia and Eurasia). Such convergence has been mainly accommodated by the consumption of oceanic and thinned continental domains, triggered by the lateral escapes of orogenic wedges. Here, we argue that the implications of the above basic concepts can allow plausible explanations for the very complex time-space distribution of tectonic processes in the study area, with particular regard to the development of Trench-Arc-Back Arc systems. In the late Oligocene and lower–middle Miocene, the consumption of the eastern Alpine Tethys oceanic domain was caused by the eastward to SE ward migration/bending of the Alpine–Iberian belt, driven by the Nubia–Eurasia convergence. The crustal stretching that developed in the wake of that migrating Arc led to formation of the Balearic basin, whereas accretionary activity along the trench zone formed the Apennine belt. Since the collision of the Anatolian–Aegean–Pelagonian system (extruding westward in response to the indentation of the Arabian promontory) with the Nubia-Adriatic continental domain, around the late Miocene–early Pliocene, the tectonic setting in the central Mediterranean area underwent a major reorganization, aimed at activating a less rested shortening pattern, which led to the consumption of the remnant oceanic and thinned continental domains in the central Mediterranean area.

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Section: From the Middle Pleistocene To The Present (Northward Acceleration Of Adria Belt Parallel Shortening And Uplift In The Apenninesmentioning

confidence: 99%

Basic Role of Extrusion Processes in the Late Cenozoic Evolution of the Western and Central Mediterranean Belts

et al. 2021

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“…Thus, there is a considerable interest in understanding which driving forces and tectonic processes are responsible for such activity. This basic knowledge could help recognizing the connection between the ongoing deformation pattern and the spatiotemporal distribution of major earthquakes, to be used for tentatively identifying the zones most prone to next major earthquakes (e.g., [1,2]).…”

Section: Introductionmentioning

confidence: 99%

Late Cenozoic Evolution and Present Tectonic Setting of the Aegean–Hellenic Arc

et al. 2022

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The Aegean–Hellenic arc is a deformed sector of a long heterogeneous orogenic system (Tethyan belt), constituted by an inner old metamorphic crystalline core flanked by younger chains of European and African affinity, running from the Anatolian to the Pelagonian zones. Due to the convergence between the Arabian promontory and the Eurasian continental domain, the Anatolian sector of that belt has undergone a westward extrusion, accommodated by oroclinal bending, at the expense of the surrounding low buoyancy domains. Since the late Miocene, when the Aegean Tethyan belt collided with the Adriatic continental promontory, the southward bowing of the Aegean–Hellenic sector accelerated, leading to the consumption of the Levantine and Ionian oceanic domains and to the formation of the Mediterranean Ridge accretionary complex. The peculiar distribution of extensional and compressional deformation in the Aegean zone has mainly been influenced by the different rheological behaviours of the mainly ductile inner core (Cyclades arc) and of the mainly brittle outer belt (Hellenic arc). The bowing of the inner belt developed without involving any major fragmentation, whereas the outer brittle belt underwent a major break in its most curved sector, which led to the separation of the eastern (Crete–Rhodes) and western (Peloponnesus) Hellenic sectors. After separation, these structures underwent different shortening patterns, respectively driven by the convergence between southwestern Anatolia and the Libyan continental promontory (Crete–Rhodes) and by the convergence between the Cycladic Arc and the Adriatic continental domain (Peloponnesus). A discussion is given about the compatibility of the observed deformation pattern with the main alternative geodynamic interpretations and with the Nubia–Eurasia relative motions so far proposed.

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“…The extensional character of this migrating stress perturbation is supposed to have favored the 1980 shock (23 November, M = 6.8) in the southern Apennines [78] [79]. The possibility that this tectonic connection systematically influences the time pattern of major earthquakes in the southern Apennines is based on the comparison of the seismic histories of the Southern Dinarides and Southern Apennines zones (e.g., [80]).…”

Section: Southern Dinaridesmentioning

confidence: 99%

Geodynamics of the South Balkan and Northern Aegean Regions Driven by the Westward Escape of Anatolia

Mantovani¹,

Viti²,

Babbucci³

et al. 2023

IJG

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The Plio-Quaternary deformation pattern of the northern Aegean and south Balkan regions is interpreted as an effect of the interaction between the Anatolian-Aegean-Pelagonian system (Tethyan belt), undergoing westward extrusion and strong deformation, and the surrounding plates (Nubia, Europe and Adriatic). Since the middle-late Miocene, the collision of the Tethyan belt with the continental Adriatic domain has caused strong E-W shortening in the outer Hellenides and Albanides, also involving the southward extrusion of the Peloponnesus wedge, at the expense of the Ionian oceanic domain. The roughly E-W extension recognized in the western South Balkan zones (Macedonia and eastern Albania) is related to the divergence between the Pelagonian belt (Albanides and Hellenides) and the Rhodope-Moesia domain. Stressed by the westward displacement of the central Anatolian plateau and by the southward bowing of the Cycladic Arc, the northern Aegean zone has contemporaneously undergone E-W compression and N-S extension, which has generated a series of dextral shear faults, delimiting a number of slats. The westward displacement and deformation of such slats can explain the morphological features of the northern Aegean zone. During this phase, the push of the central Anatolian plateau also caused the separation of the Rhodope massif from the Moesian European domain, with the consequent formation of the upper Thrace basin. This hypothesis can explain the Plio-Quaternary compressional deformations recognized in a sector of the North Anatolian fault system, the Ganos-Gelibolu zone. The proposed geodynamic/tectonic interpretation may help to explain some features of the time-space distribution of major earthquakes in the study area.

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Tectonics and Seismicity in the periAdriatic Zones: Implications for Seismic Hazard in Italy

Cited by 8 publications

References 63 publications

Basic Role of Extrusion Processes in the Late Cenozoic Evolution of the Western and Central Mediterranean Belts

Basic Role of Extrusion Processes in the Late Cenozoic Evolution of the Western and Central Mediterranean Belts

Late Cenozoic Evolution and Present Tectonic Setting of the Aegean–Hellenic Arc

Geodynamics of the South Balkan and Northern Aegean Regions Driven by the Westward Escape of Anatolia

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