Havana, Cuba (AFP) — Two powerful earthquakes rocked southern Cuba in quick succession on Sunday, US geologists said, just days after the island was struck by a hurricane that knocked out power nationwide.

The quakes cracked walls and damaged homes, but did not appear to have caused any deaths, according to preliminary reports.

They left many residents running into the streets and badly shaken so soon after the passage of hurricane “Rafael,” a category 3 storm, which struck the island last Wednesday.

“It’s the last thing we needed,” Dalia Rodriguez, a housewife from the town of Bayama in southern Cuba, told AFP, adding that a wall of her house had been damaged.

The US Geological Survey measured the second, more powerful tremor on Sunday at a magnitude of 6.8 and 14.6 miles (23.5 kilometers) deep, some 25 miles off the coast of Bartolome Maso, in southern Granma province.

It came just an hour after a first tremor, which the USGS put at a magnitude of 5.9. The quakes are the latest events in a cycle of emergencies for the Communist-run island following two hurricanes and two major blackouts in the last three weeks.