The Chilean motor tanker Cabo Tamar was en route from Balao, Ecuador
to San Vicente, Chile fully loaded with 60,500 tons of crude oil,
when she ran aground in San Vicente Bay, near Talcahuano, on July 7, 1978.
Extensive pollution occurred from her ripped tanks,
some of which were opened to the sea by the impact of striking
the rocky bottom, with an estimated 7000 tons of oil leaking out.
After some 13,000 tons had been pumped off,
the Cabo Tamar was successfully refloated on July 29
and then anchored in a more sheltered postion to complete the discharge.
Rather than tow the seriously damaged vessel to a scrapping yard,
it was decided to tow her 100 miles out to sea
where she was then sunk by shells fired by Chilean Navy units.