A series of four major earthquakes struck Central Italy between Abruzzo, Lazio, the Marche and Umbria regions on 18 January 2017.The earthquakes were strongly felt in other parts of central Italy, including the city of Rome, where the metro system and many schools were evacuated.[citation needed] During the evening of 18 January, the Rigopiano Hotel in the Gran Sasso mountain near Farindola in the Abruzzo region was struck by an avalanche, thought to have been triggered by the earthquakes, leaving several dead.[17] Upon impact, the avalanche caused part of the roof of the hotel to collapse, and moved it 10 meters (33 feet) down the mountain.[citation needed] The rapid succession of four bursts of seismic activity in three hours, all of which with a magnitude higher than 5 was described as "a novel phenomenon in recent history" by seismologists from the National Institute of Geophysics and Volcanology of Italy.
Shakemap of the strongest earthquake on 18 January 2017.