The seismic sequence in central Italy, which began with the magnitude 6.0 event on August 24 at 03:36, is still in full swing, albeit with a smaller number of aftershocks than in the first few weeks. At the moment, the National Seismic Network (RSN) ofIstituto Nazionale di Geofisica e Vulcanologia (INGV) has located a total of over 16.800 events, in an area extending for approximately 40 kilometers in a NNW-SSE direction along the Apennine chain: 15 localized earthquakes with a magnitude between 4 and 5; 250 with a magnitude between 3 and 4, and one with a magnitude greater than 5, in addition to the main earthquake of magnitude 6.0 of August 24.
The map of the seismic sequence from 24 August 2016 to 19 October 2016 (15.00 pm).
The last event of magnitude equal to or greater than 4.0 occurred Sunday morning, October 16, at 11:32 (magnitude ML 4.1) with its epicenter in the province of Perugia, 8 kilometers from Norcia, about 40 days after the last events that had exceeded magnitude 4 (those of September 3th at 03:34 e 12:18).
Temporal trend of the seismic sequence from 24 August to 19 October with indication of the daily number of earthquakes in the various magnitude classes (left) and with the cumulative number of earthquakes (right)