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1990 Carlentini earthquake
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Earthquake off the coast of Sicily, Italy
1990 Carlentini earthquake Italy 1990-12-13 00:24:25 347186 usp0004j1w yes 1990 12 13 01:24 EET 45 seconds 5.6 w y 11.1 km on 37.300 15.438 region:CD_type:event inline,title Strike-slip Sicily, Italy 8 None b 4.6 on 16 December 19 dead, 200 injured
The 1990 Carlentini earthquake (Italian: Terremoto di Carlentini del 1990) occurred off the Sicilian coast, 20 km east northeast from the town of Augusta, Sicily on 13 December at 01:24 local time. The moderately-sized earthquake measuring 5.6 on the moment magnitude scale (w)M 5.6 – 20 km ENE of Augusta, Italy https://earthquake.usgs.gov/earthquakes/eventpage/usp0004j1w/executive United States Geological Survey 20 August 2021 13 December 1990 resulted in the deaths of 19 people and caused at least 200 injuries. It also inflicted significant damage in the region, leaving 2,500 homeless.
Lasting 45 seconds,Sicilia, un giorno di terrore. Nel terremoto 17 morti e 200 feriti La Licata-Amante Dragoni La Stampa 14 December 1990 1–5 292 the shock was assigned a maximum Modified Mercalli intensity of VII–VIII (Very strong–Severe).Laurenzano Giovanna Priolo Enrico Numerical Modeling of the 13 December 1990 M 5.8 East Sicily Earthquake at the Catania Accelerometric Station Bulletin of the Seismological Society of America 2005 95 1 241–251 10.1785/0120030126 2005BuSSA..95..241L https://www.researchgate.net/publication/233814657 The earthquake was followed-up by four aftershocks that were felt by people.Strong earthquake hits southeastern Sicily https://www.upi.com/Archives/1990/12/13/Strong-earthquake-hits-southeastern-Sicily/4634661064400/ 20 August 2021 United Press International 13 December 1990
Tectonic setting
Geology of Sicily
The island of Sicily is situated near the edge of a convergent plate boundary where the African plate is colliding with Eurasia. The denser African plate subducts or dives beneath the Eurasian plate. Subduction occurs offshore in the Mediterranean Sea along the Calabrian subduction zone.C. Faccenna P. Molin B. Orecchio V. Olivetti O. Bellier F. Funiciello L. Minelli C. Piromallo A. Billi Topography of the Calabria subduction zone (southern Italy): Clues for the origin of Mt. Etna Tectonics 2011 30 1 10.1029/2010TC002694 2011Tecto..30.1003F free The presence of active subduction makes Sicily a seismically active island due to the resulting crustal deformation associated with the interaction of the Eurasian and African plates.
Earthquake
The largest shock measured 5.6 on the moment magnitude scale (w) and 5.4 on the Richter scale (l). Focal mechanism of the mainshock suggested it occurred as a result of strike-slip faulting on either a sinistral, north–south striking, vertically dipping fault, or a dextral, east–west fault plane.Amato A. Azzara R. Basili A. Chiarabba C. Cocco M. Di Bona M. Selvaggi G. Main shock and aftershocks of the December 13, 1990, Eastern Sicily earthquake Annals of Geophysics 1995 38 2 10.4401/ag-4122 https://www.annalsofgeophysics.eu/index.php/annals/article/view/4122 free
Four foreshocks that were recorded beginning in early December to the day before the mainshock. Two foreshocks occurred on 3 December. On 11 and 12 December two foreshocks with magnitudes of 2.1 and 2.4 occurred. Few aftershocks were recorded within the first half-hour after the mainshock; the largest was a magnitude 2.7 event. The largest aftershock measured l 4.6 on 16 December. The focal mechanism of the largest aftershock implied normal faulting. Following the largest aftershock, there was a dramatic increase in seismic activity, which continued for 19 days. The aftershock sequence ceased in early 1991.
Impact
220px|thumb|right|A USGS ShakeMap of the earthquake showing various intensities of shaking.
In the town of Carlentini, two buildings collapsed and 13 people died. Among the dead was a family of three while a child in the family sustained head injuries. Another family of four died in their collapsed home. Another four people died from heart attacks in various towns on the island. At least 200 people sustained injuries. Damage from the earthquake was estimated at 400 1991 million.Quake in Eastern Sicily Kills 19 and Injures 200 https://www.latimes.com/archives/la-xpm-1990-12-14-mn-6520-story.html 18 September 2024 Associated Press Los Angeles Times 14 December 1990
The earthquake damaged or destroyed at least 6,103 buildings. At least 5,133 of these affected structures damaged were in Syracuse, 929 in Catania and 41 in Ragusa. A manority of the 13,217 residents became homeless were from Syracuse. Railway on the Catania–Caltagirone–Gela and Messina–Syracuse lines were interrupted due to damaged communication, and stations of Brucoli and Scordia were seriously damaged. Public buildings including a hospital in Mineo and Scordia were also damaged.https://www.isprambiente.gov.it/it/pubblicazioni/periodici-tecnici/memorie-descrittive-della-carta-geologica-ditalia/memdes_47_cron_siciliane.pdf Institute for Environmental Protection and Research Cronistorie siciliane V. Catenacci 261–263 11 October 2021 Higher Institute for Environmental Protection and Research https://web.archive.org/web/20160803212839/https://www.isprambiente.gov.it/it/pubblicazioni/periodici-tecnici/memorie-descrittive-della-carta-geologica-ditalia/memdes_47_cron_siciliane.pdf 3 August 2016 At a cemetery in Augusta, twelve coffins were shifted from their niches.
Response
The entire district with a population of 1,000 was evacuated as authorities deemed homes unsafe to occupy. Residents sought refuge in tents installed by soldiers. Another 600 people were displaced and slept in tents or hotels in Augusta.
Prior to the earthquake, the area conducted an emergency exercise simulating an earthquake with 500 casualties within a 40 km2 area. During the actual rescue and recovery efforts however, life-saving equipment did not perform as expected. The underperformance by rescue workers and equipment led to a criminal inquiry.Fabio Albanese Sicilia, inchiesta sui soccorsi. Crescono i senzatetto La Stampa 292 18 December 1990 Italian
See also
List of earthquakes in 1990
List of earthquakes in Italy
References
External links
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Carlentini earthquake
Carlentini earthquake
Category:Earthquakes in Italy
Carlentini earthquake
Category:History of Syracuse, Sicily
Category:Disasters in Sicily
Category:1990s disasters in Italy