The quake’s epicenter was in the eastern-coastal Italian city Montecilfone.
The tremor could be felt as far away as Rome and Naples, according to data from the United States Geological Survey.
The shock sparked fears over active volcano Vesuvius in the city of Naples. Francesca Bianco, director of the Vesuvius Observatory, told press agency Ansa she has received floods of phone calls from worried residents.
Mount Vesuvius is located on the Gulf of Naples, about 9km east of Naples and a short distance from the shore.
There were aftershocks reported for the following 5 hrs, ranging in scale from 4.8 to 3.1 on the Richter scale.
This is the second serious shock to hit the region after a 4.7 shock was felt on Tuesday night.
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