The incident happened just before 3:30 p.m. in the area of Seaside Cove near the resort city of Seaside, city officials said in a statement.
First responders found the adult male surfer with injuries to a lower leg being carried to the parking lot by fellow surfers, the statement said. An off-duty Seaside Beach Lifeguard had applied a field tourniquet to help slow the bleeding.
Officials shared photos of the scene and of the local surfer’s surfboard, which had markings from the shark’s bite indented on its surface.
A Medix crew rushed the man to a local hospital where he was evaluated in a trauma unit.
Officials credited bystanders, fire and police units, and the Medix team with saving the man’s life.
“The incident serves as a valuable reminder to never recreate alone, in or out of the water,” officials said. “The fast response of fellow surfers was instrumental in providing aid to the victim.”
The man’s current condition was not immediately known.