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 segment of abyssal plain narrowed between the Maganghi volcano and Vavilov volcano, Tyrrhenian Sea. Principal Investigator: dr. A. Fabbri; partners: dr. S. Rossi, prof. E.F.K. Zarudzki; tecnichans: P. Ferretti e A. Ferriani. In the 2020, the sparker profile was digitazed (TIFF format image) and converted into georeferenced SEGY standard format and included in the Sparker DataBase (SDB) managed by the informal group of SDB management. The profile is characterized by: shot number 1 - 20; trace number 1- 9755; record length 0 - 8 s; coordanate UTM, WGS84 system.