Publikationsdatum:
2017-04-04
Beschreibung:
The 6 April 2009 Mw 6.3 earthquake (Imax 9–10, Mercalli–Cancani–
Sieberg [MCS]) struck the Abruzzi region of central Italy, producing severe damage in
the city of L’Aquila. There was heavy damage in the city, especially in the central city
area where unusual features of the damage pattern were immediately evident. The aim
of this study is to correlate the distribution and the severity of the damage with the
geological setting of the area, taking into account the characteristics of the building
stock through time.
Strong-motion recordings and ambient noise measurements taken soon after the
mainshock and during the entire aftershock sequence showed variability in groundmotion
amplification throughout the city. Factor of amplification (Fa) results are very
high in the southern sector of the city, where the Limi Rossi del Colle dell’Aquila
(LRCA) red silts outcrop, and quickly decrease northward, where LRCA is absent. This
result correlates with the damage distribution to reinforced concrete (RC) buildings. In
the southern sector the rate of collapse of RC buildings was 10%, versus 2% in the rest
of the city. General conclusions highlight that the building stock of the city suffered
different levels of damage that can be partially explained by the combination of building
vulnerability and surface geology.
Beschreibung:
Published
Beschreibung:
1543-1553
Beschreibung:
4.2. TTC - Modelli per la stima della pericolosità sismica a scala nazionale
Beschreibung:
JCR Journal
Beschreibung:
restricted
Schlagwort(e):
l'aquila earthquake
;
damage distribution
;
04. Solid Earth::04.06. Seismology::04.06.04. Ground motion
;
04. Solid Earth::04.06. Seismology::04.06.05. Historical seismology
Repository-Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Materialart:
article
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