The Portuguese Institute of the Sea and Atmosphere (IPMA) has updated the initial information, now stating that the earthquake, recorded at 05:48, “was felt with maximum intensity III (modified Mercalli scale)”.

The institute added that the earthquake “did not cause any personal or material damage”, stressing that the information will be updated if the situation warrants it.

According to the organization, locating the epicenter of an earthquake is a “complex physical and mathematical process that depends on the data set, algorithms and seismic wave propagation models”, so “different agencies can produce slightly different results”.