The quake had a magnitude of 5.8 according to the National Observatory of Athens.
Spyros isn't a firefighter, but when his home was threatened with wildfires, he decided to take action.
The UK's 21-strong team includes four Welsh firefighters, who are unsure when they will return home.
Thousands of people have had to evacuate Greece's second biggest island as severe wildfires rage.
The coastguard moved 650 people from Limni, in the north of the island of Evia.
Scores of people on Evia were forced to evacuate by sea as wildfire spread rapidly, destroying homes.