The 5.5 magnitude is one of several tremors which rocked Puerto Rico today, the most recent of which came in at 4.5.

Tsunami.gov, the American Tsunami monitoring body, said there is currently no tsunami warning for Puerto Rico, according to data from the latest tremors.

They have advised people may have experienced "shaking".

READ MORE:NASA reveals Puerto Rico earthquake damage in satellite images

Puerto Rico isn't the only country to feel the sting of an earthquake today, as Greece was also hit by a significant tremor.

The USGS reported a 6.6 magnitude earthquake near Ierapetra at 12.51pm, which rumbled in the sea to the south of the Cretan town.

Currently, the earthquake monitors suggest people on the island will not feel its effects, and there is a low chance of death or significant economic damage.

The USGS released a green pager warning for both estimates, with a maximum 65 percent chance one person would die, and damages could stray into the $1 million (750,000) band.

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Puerto Rico earthquake: 5.5 magnitude quake rocks Caribbean - is there a tsunami warning? - Express.co.uk