An earthquake has hit Greece after days of tremors in the country.

The strong quake measured 5.2 magnitude and was recorded between the islands of Amorgos and Santorini.

It occurred after two smaller tremors, and recorded at 9.09pm local time (7.09pm GMT). It is thought to have happened at a depth of 5km.

More than 11,000 people have already left Santorini after recent seismic activity. Around 7,000 departed by ferry, 4,000 left by air, the BBC reports.

Schools on Santorini - as well as on neighbouring islands, such as Anafi, Paros, Naxos and Mykonos - are expected remain closed until Friday.

Units of firefighters who specialise in natural disasters are being despatched to Santorini, as well as teams with dogs and a mobile operations centre.

Helicopters are on standby in case they are needed, Vassilis Kikilias, Greece's climate and civil protection minister said.

It is the low season on the islands presently, which means local residents and workers make up the majority of evacuees, rather than tourists.

It comes after Brits were issued a warning about travel earlier this month by the Foreign Office.

The Government said: "The Greek Ministry of Civil Protection has issued advice for Santorini (Thira), Anafi, Ios and Amorgos, following increased seismic activity in the area.

"People are advised not to attend large indoors gatherings and to avoid old or abandoned buildings."

"The Greek Ministry advises people to avoid the ports of Amoudi, Armeni, Korfos and Old Port (Paleos Limenas) in the area of Fira and to choose safe routes when travelling, particularly in areas where the landslide risk is high.

"In case of a strong tremor, people should immediately depart coastal areas.

"If you are in the affected areas, you should follow the advice of the local authorities."

Greek officials have issued guidance on how to prepare for earthquakes, and what to do if one strikes.

This can be viewed via the Greek Ministry of Civil Protection.