An earthquake of magnitude 3.7 was registered at 6.30 by the instruments of the National Institute of Physics and Volcanology on the coast in the province of Pesaro-Urbino.
It occurred at a depth of 9 km.
Then followed three other tremors of magnitude 2.5 at 6.32, 2.26 at 6.39 and 2.1 at 6.42.
The population of Pesaro and Urbino, according to what is learned, did not feel the shock, while some reports came from Ancona.
The firefighters did not receive calls for intervention.
