An earthquake measuring 6.1 occurred early Monday morning in the Mediterranean Sea between Morocco and Spain, announced the American Institute of Geology (USGS).

The earth shook at 4:22 (GMT) 62 km north of the city of Al Hoceima Morocco (north) and 164 km southeast of Gibraltar, the USGS said.

The earthquake was followed by a tremor with a magnitude of 5.3.

In its first estimate of the impact of the earthquake, the USGS said it was “unlikely that there are casualties and damage”.

The secoussses were felt in southern Spain and the Spanish enclave of Melilla, but no casualties were reported by the authorities.

“For now there is only material damage, and we do not detect very serious,” said radio Cadena Ser Isidro Gonzalez, municipal official in charge of Citizen Security in Melilla.

“There is nothing very serious, some tall buildings have cracks,” he has said, also citing collapses framed facades and balconies.

The people of the enclave, however, were frightened by the force of the earthquake, which made pitching their beds late at night and many came out in pajamas in the street not daring to go home, especially as several aftershocks were felt.

The authorities of the city of Melilla as a precaution decided not to open schools in order to review the facilities.

In the Malaga region in southern Spain, across the Strait of Gibraltar, many residents also felt the tremor.

In February 2004, an earthquake of magnitude 6.3 had struck Al Hoceïma, killing nearly 630 people and causing extensive damage.