The data set comprises a wide-angle reflection/refraction profile and adjacent multi-channel seismic data, which have been recorded between 28 August and 18 September 2009 around the island of Sao Miguel / Azores. The main purpose was to unravel the volcano-tectonic evolution of Sao Miguel island, which is part of the south-eastern Terceira rift. For the wide-angle reflection/refraction profile we used ocean-bottom-hydrophones and land station for recordings and up to three 32 liter BOLT airguns as the seismic source. Four GI-Guns and a digital 144 channel streamer of 600 m active length were used for the multi-channel seismic measurements. All data are post-stack time migrated. For more details see Hübscher and Gohl (2014). All data have been collected during RV METEOR expedition M79/2 (Hübscher, 2013).