A series of four major earthquakes struck Central
Italy
between
Abruzzo
,
Lazio
, the
Marche
and
Umbria
regions on 18 January 2017.
[2]
[3]
Earthquakes
[
edit
]
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.
[4]
A stronger, 5.7 tremor hit the same epicentral area at 11:14 local time.
[5]
A third earthquake of preliminary magnitude of 5.6 struck 11 minutes later.
[6]
At 14:33 local time, the fourth tremor of magnitude 5.2 was registered.
[7]
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.
[8]
The strongest tremor was also felt in coastal parts of Croatia (with an
intensity
of III).
[9]
Five deaths were reported in
Teramo
,
Crognaleto
and
Campotosto
.
[10]
These earthquakes also appeared to have triggered, in combination with a
winter storm
, the
Rigopiano avalanche
a few hours later, that struck a hotel.
[
citation needed
]
Avalanche
[
edit
]
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.
[11]
There were forty people in the hotel when the avalanche struck, including twenty-eight guests and twelve employees
[12]
Twenty-nine people were confirmed dead from the avalanche.
[13]
A total of nine people were rescued,
[14]
[15]
and two other people survived because they had been standing outside of the hotel when the avalanche hit. A person died in
Castel Castagna
.
[16]
[17]
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.
[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.
[18]
Shocks
[
edit
]
Magnitude of January 2017 earthquakes
Magnitude from August 2016 Central Italy earthquakes
Geological aspects
[
edit
]
The quakes occurred in a
seismic gap
which is located between the areas hit by the
August 2016 earthquake
, the
October 2016 earthquakes
and the
one in Umbria and Marche in 1997
. In that gap, no strong earthquake happened for more than 100 years
[19]
until 2016.
[
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.
[20]
The same scientists compared it with the
1980 Irpinia earthquake
, where three different quakes happened in 80 seconds.
As the process of faulting along the chain of the
Apennine Mountains
is a relatively recent one in geological terms, starting 500,000 years ago, the faults are more irregular, so more shaking occurs due to foreshocks according to seismologist
Ross Stein
from Stanford University.
[
citation needed
]
See also
[
edit
]
References
[
edit
]
- ^
A. Rossi; A. Tertulliani; R. Azzaro; L. Graziani; A. Rovida; A. Maramai; V. Pessina; S. Hailemikael; G. Buffarini; F. Bernardini; R. Camassi; S. Del Mese; E. Ercolani; A. Fodarella; M. Locati; G. Martini; A. Paciello; S. Paolini; L. Arcoraci; C. Castellano; V. Verrubbi; M. Stucchi (2019).
"The 2016?2017 earthquake sequence in Central Italy: macroseismic survey and damage scenario through the EMS-98 intensity assessment"
.
Bulletin of Earthquake Engineering
.
17
(5): 2407?2431.
Bibcode
:
2019BuEE...17.2407R
.
doi
:
10.1007/s10518-019-00556-w
.
S2CID
116854125
.
- ^
"Terremoto, 4 scosse sopra magnitudo 5: torna la paura nel Centro Italia in ginocchio per la neve"
. 18 January 2017
. Retrieved
18 January
2017
.
- ^
"M 5.7 - 6km WSW of Amatrice, Italy"
.
United States Geological Survey
. 18 January 2017
. Retrieved
16 March
2017
.
- ^
"Earthquake, Magnitude 5.3 ? CENTRAL ITALY ? 2017 January 18, 09:25:40 UTC"
. Retrieved
18 January
2017
.
- ^
"Earthquake, Magnitude 5.7 ? CENTRAL ITALY ? 2017 January 18, 10:14:10 UTC"
. Retrieved
18 January
2017
.
- ^
"Earthquake, Magnitude 5.6 ? CENTRAL ITALY ? 2017 January 18, 10:25:25 UTC"
. Retrieved
18 January
2017
.
- ^
"Earthquake, Magnitude 5.2 ? CENTRAL ITALY ? 2017 January 18, 13:33:37 UTC"
. Retrieved
18 January
2017
.
- ^
Angela Dewan; Barbie Nadeau.
"Rome's subway evacuated as quakes rock Italy"
. CNN
. Retrieved
19 January
2017
.
- ^
"Geofizi?ki odsjek PMF-a"
.
gfz.hr
. Retrieved
19 January
2017
.
- ^
"Sisma, due morti a Campotosto e tre nel Teramano ? Tgcom24"
.
Tgcom24
. Retrieved
20 January
2017
.
- ^
"
'Many dead' in avalanche on Italy hotel in the Abruzzo"
. BBC News. 19 January 2017
. Retrieved
19 January
2017
.
- ^
"Hotel travolto da valanga, quattro morti e oltre 25 dispersi: "Aspettavano spazzaneve per andare via"
"
. 19 January 2017.
- ^
"Italy's Rigopiano hotel death toll reaches 29, rescue operation over"
.
TASS Russian News Agency
. Retrieved
26 January
2017
.
[
permanent dead link
]
- ^
Denti, Antonio (21 January 2017).
"More survivors in Italian avalanche hotel as death toll rises to five"
.
Reuters
. Retrieved
21 January
2017
.
- ^
"Miracolo Rigopiano: 10 ancora vivi, salvati 4 bambini"
. 20 January 2017.
- ^
Giuffrida, Angela (19 January 2017).
"Italy avalanche: many feared dead as Rigopiano hotel engulfed"
.
The Guardian
. Retrieved
19 January
2017
.
- ^
a
b
"Killer avalanche turns Italian hotel into 'coffin'
"
. Agence France-Presse. Archived from
the original
on 19 January 2017
. Retrieved
19 January
2017
.
- ^
"Rigopiano hotel avalanche: Italian rescuers find no sign of life"
. BBC News. 19 January 2017
. Retrieved
19 January
2017
.
- ^
since there is that 1879 quake in the map, not more offside than the actual quake its safer to say so, instead telling the 157 years from source spiegel.de
- ^
"Ingv, quattro terremoti in tre ore, mai vista una serie simile ? Terra e Poli ? Scienza&Tecnica"
.
ANSA.it
(in Italian). ANSA. 18 January 2017.
External links
[
edit
]
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- †
indicates earthquake resulting in at least 30 deaths
- ‡
indicates the deadliest earthquake of the year
- Dates for all earthquakes are in
UTC
- Additional information at [
[1]
]
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Historical
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20th century
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21st century
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