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Aseismic transient during the 2010-2014 Pollino (Southern Italy) seismic swarm sequence revealed by dense InSAR and GPS measurements.
Cheloni D., D'Agostino N., Selvaggi G., Avallone A., Fornaro G., Giuliani R., Reale D., Sansosti E., Tizzani P.
The increasing availability of high-resolution geodetic data, such as short-repeat-time Synthetic Aperture Radar (SAR) images and continuous Global Positioning System (GPS) measurements, have greatly increased our capability to discover transient aseismic slip episodes of different size, duration and temporal evolution. Geodetic measurements proved to be a crucial data set for understanding the 2010-2014 Pollino swarm sequence. Our results indicate that an aseismic fault slip may have been the primary driving process of the Pollino swarm, suggesting that crustal deformation in the Pollino range may be characterized by aseismic slip episodes that release a significant fraction of the accrued strain.