The 1953 earthquake in the Fiji islands caused submarine subsidence at the outer edge of the reef near Suva, on Viti Levu, and damage to two of three submarine cables from Suva. The cable to Norfolk island, passing along the Kadavu Passage at a depth of 7,000 feet, was extensively damaged. More than 60 miles of cable were buried or shifted out of range. The recovered portions indicated erosion, tearing, twisting, and sandblasting. It is inferred that damage was caused by a turbidity current, that its velocity was at least 10 miles an hour, and that it traveled for at least 70 miles.

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