Guido Ventura, 2013. "Kinematics of the Aeolian volcanism (Southern Tyrrhenian Sea) from geophysical and geological data", The Aeolian Islands Volcanoes, F. Lucchi, A. Peccerillo, J. Keller, C. A. Tranne, P. L. Rossi
Download citation file:
The Aeolian volcanism (c. 1 Ma active) develops within the Africa–Eurasia convergence setting, which is characterized by the subduction of the Ionian plate below the Calabrian Arc. Deep earthquakes occur to the east of a tear fault that divides the Aeolian Islands into two sectors: (a) an eastern sector characterized by active volcanism, reduced crustal thickness, high seismic flux, low P-wave velocity (Vp) and attenuation (Qp) and NE–SW extension; (b) a western sector where a NNW–SSE compressive strain along a WNW–ESE-striking fault system is acting. The geophysical and structural features of the eastern sector are consistent with upwelling and SE migration of the asthenospheric mantle. The extensional and strike-slip strain allow the magma to upraise along dyke-like conduits and to erupt. Earthquake-induced strain changes may trigger volcanic eruptions and degassing episodes. The oldest volcanism (Pliocene–Early Pleistocene) was controlled by a WNW–ESE-striking tear fault related to the SE rollback of the slab. A new tear, the Tindari–Letojanni Fault System, started during the Middle–Late Pleistocene and represents the active western boundary of the subducting slab. The present-day Aeolian volcanism is associated with rifting processes developing within an arc collision zone.