The country’s National Service of Territorial Studies said that the shaking damaged homes and other buildings in the state of La Union, mainly around the municipality of El Carmen.
One hospital developed cracks in its walls, but inspectors said they found no major structural damage.
Many residents of El Carmen were sleeping in the open due to the days of ongoing tremors.
The strongest quake registered a magnitude of 5.8 and struck on November 24 at 3:13 local time, according to the U.S. Geological Survey.
El Salvador was struck by much stronger temblors in January and February of 2001, during which more than 1,150 people were killed and about 1 million others were left homeless.