A series of four major earthquakes struck Central Italy between Abruzzo, Lazio, the Marche and Umbria regions on 18 January 2017.[2]
Earthquakes
A magnitude 5.3 earthquake struck 25 km northwest of L'Aquila on 18 January at 10:25 local time at a depth of 9 km.[3] A stronger, 5.7 tremor hit the same epicentral area at 11:14 local time.[4] A third earthquake of preliminary magnitude of 5.6 struck 11 minutes later.[5] At 14:33 local time, the fourth tremor of magnitude 5.2 was registered.[6] These earthquakes were followed by multiple aftershocks.
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.[7] The strongest tremor was also felt in coastal parts of Croatia (with an intensity of III).[8] Five deaths were reported in Teramo, Crognaleto and Campotosto.[9] These earthquakes also appeared to have triggered, in combination with a winter storm, the Rigopiano avalanchea few hours later, that struck a hotel.[10]
Avalanche
During the evening of 18 January, the Rigopiano Hotel in the Gran Sasso mountainnear Farindola in the Abruzzo region was struck by an avalanche, thought to have been triggered by the earthquakes, leaving "many dead".[11][12] There were forty people in the hotel when the avalanche struck, including twenty-eight guests and twelve employees.[13]Twenty-nine people were confirmed dead from the avalanche.[14] A total of nine people were rescued,[15][16] and two other people survived because they had been standing outside of the hotel when the avalanche hit.[17][18]
It was reported that shortly after the earthquake hit the region, hotel guests were gathered on the ground floor of the hotel, awaiting evacuation when the avalanche struck.[18] Upon impact, the avalanche caused part of the roof of the hotel to collapse, and moved it 10 meters (33 feet) down the mountain.[19]
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