 According to marine archeologist Vello Mäss, the specific shape of shafts for laying mines on the submarine-shaped object seen on the sonar screen gave rise to hopes indicating a probability of about 95% that the wreck found was the "Kalev".However, further research had to be done to conclusively confirm the finding.Hopes were high that this sonar target suggested that "Kalev" had been found and that the presumption that she sank as a result of hitting a mine near Cape Juminda was correct.