An 18-year-old Romanian woman was killed and her 20-year-old boyfriend injured when the storage room where they had made their home in Messenia, the Peloponnese, collapsed on Sunday following a mild earthquake in the area.

Firefighters, who managed to pull the 20-year-old man alive from the rubble of the building near the village of Gargaliani, said that a wall collapsed after the tremor. They added that pressure had built up on the wall after heavy rain in recent days had caused a large volume of debris to be washed up against it.

The earthquake, measuring 4 on the Richter scale, struck at 7.10 a.m. and its epicenter was in the Messenian Gulf.

The 20-year-old migrant suffered light leg injuries and was taken to hospital in Kalamata for treatment. Neither of the Romanians were named.