During 2018, the National Seismic Network of the National Institute of Geophysics and Volcanology located 23180 earthquakes in Italy and in the surrounding areas: an average of over 63 events per day, just under 3 every hour, one every 20 minutes. In reality, there are many more earthquakes that occur in a seismic area such as Italy. We speak of course of micro-earthquakes, those that remain below the detection threshold.
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