Between 23:09 pm and 23:19 pm (Italian time) on April 27, 2017, the National Seismic Network (RSN) of the National Institute of Geophysics and Volcanology (INGV) located 3 earthquakes of magnitude greater than or equal to 3.5 among the provinces of Macerata and Perugia, in the area affected by the seismic sequence that began in August 2016.
As can be seen from the map below, the three events had as their epicentral area the area on the border between the Marches and Umbria near the municipalities of Visso (MC), Monte Cavallo (MC), Ussita (MC) and Preci (PG ).
The municipalities within 10 km from the epicenter are as follows (the columns after the names respectively indicate the province, the distance from the epicenter in km, the inhabitants):
For more information: http://cnt.rm.ingv.it/
Figure 1 - view of the Monte Gorzano fault from the south-west with the segments activated from 2009 to 18 January 2017