Four earthquakes measuring up to 5.9 on the Richter scale shook the Ionian island of Zakynthos yesterday causing some damage though there were no immediate reports of injuries.

The largest tremor, which reached 5.9 Richter, hit the island at about 8.30 p.m. and had its epicenter in an undersea area south of Zakynthos.

The tremor was felt as far away as Athens and Kalamata in the Peloponnese.

The three previous tremors struck the island between 12.10 a.m. and 3.02 a.m. and ranged in strength from 4.4 to 5.7 Richter.

One house suffered major damage, while eight more homes and the port were also damaged, though not as severely, authorities said. Schools were closed yesterday so authorities could conduct safety checks on buildings.

Last week, two tremors measuring 5.7 and 4.8 Richter shook Zakynthos — one of the most earthquake-prone areas in the country.