In this paper we examine the seismicity of Montefeltro, an historical region of northern Apennines in central Italy. The analysis focuses on the seismic activity occurred in the period 2005-2017 to exploit the substantial improvement of the National Seismic Network (RSN) in the region. We collected P and S phases from 402 earthquakes for a total of about 7000 arrival times. Earthquakes were integrated with new pickings and relocated using the Hypoellipse code. The results show a sporadic, rather diffuse background seismicity marked by three small seismic sequences strongly clustered in time and space. The most important occurred in September-October 2005 (ML=3.2) and August-September 2006 (ML=3.7), in the neighbourhood of the towns of Macerata Feltria and Casteldelci, respectively. The...