L'Aquila Italy 2009 (CAR)

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Event ID
200904060132
Event name
L'Aquila
Country
Italy
Region in the country
Abruzzo
World region
Europe
Epicentral coordinates (long/lat)
POINT(13.33 42.33)
WKT GIS format
GEMECD contributing partner
CAR
Event narrative

On Monday April 6th 2009, at 03:32 local time, an earthquake of moment magnitude 6.3 struck the town of L’Aquila and surroundings in Central Italy’s Abruzzo region.

The April 6, 2009 main shock was preceded by an earthquake swarm which started at the end of 2008; the largest earthquake of this swarm had magnitude 4.1 and occurred on March 30th 2009.

The shallow focal depth (9 km) and proximity of the epicentre (42.33°N, 13.33°E) to the city of L’Aquila and surrounding villages meant that damage was quite severe and loss of life occurred mostly due to collapse of old masonry and some reinforced concrete buildings (e.g. a student dormitory of L’Aquila University etc.).

The USGS’s PAGER system estimated that during this earthquake 88,000 people were exposed to intensity VII or greater.

Date of occurrence (UTC)
2009-04-06
date
Time of occurrence (UTC)
01:32:00
time
Date of occurrence (local)
2009-04-06
date
Time of occurrence (local)
03:32:00
time
Day of the week (local)
Monday
Magnitude
6.3
Magnitude units
Moment (Mw)
Focal depth
8.8
km
Seismological data: source
USGS
Seismological data: comment

ShakeMap Atlas

Overall impact

The earthquake caused 308 deaths and nearly 1,200 injuries of which 202 were serious. This was the deadliest earthquake in Italy since the November 23, 1980 earthquake in the region of Campania and the most destructive earthquake in L’Aquila since the series of three earthquakes that devastated the wider region in January 14, 16 and February 2, 1703 killing at least 10,000 people.

203 people died in L’Aquila (a city of 73,000 inhabitants and many more thousands of non-resident students of the L’Aquila University), while in the village of Onna 38 out of circa 350 inhabitants were killed.

The hospital at L'Aquila, where many of the victims were brought, suffered damage in the 4.8 aftershock which occurred one hour after the main earthquake and had to be partly evacuated. Damage to L’Aquila’s and wider regions’ historic buildings and churches was also quite severe.

In total almost 4,000 buildings collapsed or were damaged beyond repair, while another 70,000 buildings were damaged but repairable, with the number of long-term homeless reaching 49,000 people.

The Italian government in a report to the EU estimated the cost of the earthquake at just over €10 billion while insured losses reached 250 million US$.

Overview data
Loss: Human Casualty
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People injured
1550
number
People injured: source
Alexander, D. (2009). Mortality and morbidity risk in the L'Aquila, Italy earthquake of 6 April 2009 and lessons to be learned. Second International Workshop on Disaster Casualties, Cambridge, 15-16 June.
People injured: comment

1500 to 1600 people reported injured.

People injured: status
Approximate

People seriously injured
202
number
People seriously injured: source
D. Alexander, personal communication
People seriously injured: comment

898 people were triaged, of which 202 were classed as critically/seriously injured. People that needed hospital treatment were transferred by helicopters to hospitals outside the affected region.


People missing
0
number

People killed
308
number
People killed: source
Alexader, D. and Magni M. (2013). Mortality in the L’Aquila (Central Italy). PLoS Currents Disasters

People killed due to ground shaking
305
number
People killed due to ground shaking: source
Alexader, D. (2009). Mortality and morbidity risk in the L'Aquila, Italy earthquake of 6 April 2009 and lessons to be learned. Second International Workshop on Disaster Casualties, Cambridge, 15-16 June.

Loss: Building damage
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Total number of buildings destroyed by shaking
3893
number
Total number of buildings destroyed by shaking: source
Italian Civil Protection
Total number of buildings destroyed by shaking: comment

http://it.wikipedia.org/wiki/Terremoto_dell'Aquila_del_2009#cite_note-adnkronos-8


Number of buildings damaged by shaking
69591
number
Number of buildings damaged by shaking: source
Italian Civil Protection

Number of dwellings destroyed by shaking: status
N/A

Number of dwellings damaged by shaking: status
N/A

Loss: Socioeconomic
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People homeless
49091
number
People homeless: source
Italian Civil Protection
People homeless: comment

4 months after the event; initially the homeless were 65,000


Direct economic loss
10212
million US$
Direct economic loss: source
Italian Governm report to the EU
Direct economic loss: comment

The insured losses are not included. Munich Re suggests 2651 million US$ overall economic loss incl. 260 million US$ insured losses.


Indirect economic loss: status
N/A

Insured loss
260
million US$
Insured loss: source
Munich Re
Insured loss: comment

The insured losses have not been added to the direct economic loss figure.


Demographics
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Total number of buildings: status
N/A