Insights on the seismotectonics of the western part of northern Calabria (southern Italy) by integrated geological and geophysical data: Coexistence of shallow extensional and deep strike-slip kinematics

Insights on the seismotectonics of the western part of northern Calabria (southern Italy) by integrated geological and geophysical data: Coexistence of shallow extensional and deep strike-slip kinematics

We assess the seismotectonics of the western part of the border area between the Southern Apennines and Calabrian Arc, centered on the Mercure extensional basin, by integrating recent seismicity with a reconstruction of the structural frame from surface to deep crust. The analysis of low-magnitude (...

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Veröffentlicht in:Tectonophysics 2017-11, Vol.721, p.372-386
Hauptverfasser: Ferranti, L., Milano, G., Pierro, M.
Format: Artikel
Sprache:eng
Schlagworte:
Activation
Axes (reference lines)
Continental crust
Crustal structure
Earthquakes
Fault lines
Faults
Geological faults
Geophysical data
Geophysics
Italy
Kinematics
Mercure Basin area
Orientation
Plate tectonics
Seismic activity
Seismicity
Seismology
Seismotectonics
Slip
Solutions
Southern Apennines
Tearing
Uplift
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Zusammenfassung:We assess the seismotectonics of the western part of the border area between the Southern Apennines and Calabrian Arc, centered on the Mercure extensional basin, by integrating recent seismicity with a reconstruction of the structural frame from surface to deep crust. The analysis of low-magnitude (ML≤3.5) events occurred in the area during 2013–2017, when evaluated in the context of the structural model, has revealed an unexpected complexity of seismotectonics processes. Hypocentral distribution and kinematics allow separating these events into three groups. Focal mechanisms of the shallower (
ISSN:0040-1951
1879-3266
DOI:10.1016/j.tecto.2017.09.020