The set of George Clooney’s latest film was rocked by an earthquake at the weekend.

The 47-year-old star, who is currently shooting ‘Men Who Stare At Goats’ alongside co-star Ewan McGregor, was on location when tremors measuring 6.1 on the Richter scale shook Puerto Rico.

The shock quake hit on the anniversary of the worst recorded earthquake in the region, which took place 90 years ago on 11 October 1918.

No immediate damage or casualties were reported.

‘Men Who Stare At Goats’ is an anti-war satire set for release in 2010.