Shark attack, 1979-03-11 (Unprovoked)
Location: Ano Nuevo Island, San Mateo, County, California, USA
Time: 10h00
Activity: Scuba diving (submerged)
Victim: Calvin Sloan (M, age )
Injury: No injury, swim fin bitten
Fatal: N
Species: White shark, 4 m to 5 m [13' to 16.5'] 
Source: D. Miller & R. Collier, R. Collier, p.76