(Adds details, Colombian officials)

CARACAS, June 20 (Reuters) - A quake shook Venezuela and Colombia on Wednesday but there were no reports of damage, including to any of Venezuela's vital oil operations, officials said.

The quake, which hit northeastern Colombia and southwestern Venezuela, should not produce any significant damage because of its size and depth, Herbert Rendon, a Venezuelan seismological official said in a telephone interview.

Officials in the neighboring countries differed over the size of the quake, which struck around 3 p.m. in Venezuela, or 2 p.m. in Colombia (1800 GMT).

In Colombia, the National Geophysics Institute said it was magnitude 5.7, compared with a 5.3 figure from Venezuelan officials.

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