After that, strong, at 18.35 and magnitude 4.4, the quakes continue in the L'Aquila area, in particular between the Marsica and the Frusinate, in the area between Balsorano, the epicenter, and Villavallelonga, Pescosolido, Sora, Campoli Appennino, Broccostella and Isola del Liri. The strongest shock was also felt in Rome and Naples. Hundreds of calls to the fire brigade.
According to the study of the National Center of the Institute of Seismology and Volcanology, "the area affected by today's event is characterized by frequent seismicity, both instrumentally and from historical data".
"In the hours preceding the 4.4 magnitude event – the INGV is decreasing in a statement – about 30 small earthquakes had occurred, all of which had a magnitude less than 3. In the hour following the 18.35 earthquake, about 20 small magnitude replicas were recorded. (the largest of 2.2.) The area of today's earthquake – he continues – is characterized by very high danger, as evidenced also by the strong earthquakes in the past.The historical seismic event closest to the area of today's event is that of 1654 , for which a magnitude of 6.4 was estimated, he concludes.
Carlo Doglioni, president of Ingv, explains: "The same tectonics that generated the earthquake in central Italy, but a different fault. The possibility of more powerful shocks is not excluded".
In that same area in fact the Avezzano earthquake of 1915 occurred and two other important historical earthquakes were recorded in the frusinate in 1654 and further south, towards Molise, in 1349.
"The earthquake – says the mayor of Balsorano, Antonella Buffone – has produced no damage, not even slight, with the exception of an external staircase of an old abandoned farmhouse. The citizens have poured into the street just after the shock, but now the "It doesn't seem that anyone is spending the evening in the car. We've set up a heated tent for those who don't feel safe."
The shock at 6.35 pm was distinctly felt in Sulmona (Aq) and also in L'Aquila, where employees of the Abruzzo Region, in service at the ancient Via Salaria headquarters in the east, left the building and took to the streets.
Schools closed tomorrow in Balsorano and in other centers of the Marsica, in Morino, Civita d'Antino, Civitella Roveto, Luco, Trasacco, Villavallelonga, San Vincenzo Valle Roveto and Canistro. The prefectural commissioner Mauro Passerotti has ordered the closure of institutions of every order and degree in Avezzano (Aq), as well as the mayor of Tagliacozzo, Vincenzo Giovagnorio, "in order to allow – he says – that municipal technicians carry out the necessary inspections on the structures".
As for transport, from 6.40 pm the railway traffic on the lines Sulmona-Avezzano, Roccasecca-Avezzano and between Ceprano and Cassino (Rome-Cassino line) is suspended, as a precaution, to allow the verification of the state of the infrastructure by the Rfi technicians.
On the high-speed Rome-Naples line, the trains already traveling proceed with speed limitation up to verification. Technicians of the company Strada dei Parchi Spa, concessionaire of the A24 and A25 motorways between Abruzzo and Lazio, are carrying out inspections on the stretch in question, especially on viaducts.
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