The magnitude 4.0 quake struck at around 10pm local time on Tuesday, a week after a magnitude 4.2 tremor hit the city.
Both earthquakes have been linked to Campi Flegrei, an ancient volcanic region around 10km west of the city centre where – The Guardian reports – volcanic activity has intensified in recent months.
CNN, citing Italy’s fire brigade, reported that while there was minor damage to some buildings in the city, no one was injured as a result of Tuesday’s quake.
The last major eruption in Campi Flegrei was in 1538. The most recent sustained period of activity in the area was from 1983 to 1984.
Italy’s minister for civil protection, Nello Musumeci, had been due to convene a meeting of local officials following last week’s quake to draft the city’s planned response should there be an eruption, according to The Guardian.
The Foreign Office is yet to update its advice for the city and Italy, and remains up to date as of 22 September.