Single channel seismic profile with 30 kJ - sparker, Teledyne Exploration of Houston (USA), acquired in analogic format and printed in real time on thermic support. Geolocation was in Loran C system later converted into geographic WGS84 system. The investigated area is represented by the abyssal plain segment narrowed between the Maganghi volcano and Vavilov volcano in the central Tyrrhenian Sea. Principal Investigator: dr. A. Fabbri; partners: dr. S. Rossi, prof. E.F.K. Zarudzki; tecnichans: P. Ferretti e A. Ferriani. During 2020 paper profiles were digitazed (Tiff images format) and converted into georeferenced standard SEGY format (shot number 1 - 15; trace number 1 - 6838; record length 0 - 8 s), coordinate UTM, WGS84 system.