1. NERIES JRA4 Meeting Rome 4 and 5 December 2006 TASK A: SITE SELECTION Monography of the station CATANIA Station code CAT__ Servizio Sismico Nazionale

2. Location of the site General Site Information Code CAT__ Site Name-Location CATANIA Surface GeologySo

3. Geographical Data Latitude 37.446944 Longitude 15.046667 Altitude (m)10 Location of the station

4. Broader areaIn PictureY Free FieldY Type of networkPer Instrument location Orientation [L+] AddressZona Industriale 29 Site Description – Housing Table Location of the station

6. Earthquake Recordings Type of InstrumentA Present ConditionAct Date of activation 1990/07/24 Date of deactivation Strong Motion RecordsY number of records with PGA<0.1 number of records with PGA>=0.11 maximum recorded PGA (g)0.247 Date of Max PGA recorded 1990/12/13 SourceENEA

7. MorfologyPl Basin Geometry Width Depth Length Closest Distance from Edge (Km) Morphological Data View of the area

8. Geological Data Geological mapY Stratigraphy & Lithology Y Bedrock Depth (m)> 100 m Ground water tableY Water table depth2 m

9. Geological map

10. Geological sketch

11. The creation of a database of about 860 boreholes provided the basis for a geotechnical zonation of the Catania municipal area; based on existing in situ tests (SPT, CPT, cross-hole and down-hole measurements) the mapping of the shear wave velocity for earthquake engineering purposes was carried out. All the borehole and in situ test data were stored in the database and the investigation sites located via GIS system (see 2.2). To integrate the previous data, investigations were carried out for measuring the shear wave velocity by surface wave methods (see 2.3), in particular SASW investigations have been performed at beach sites south of the city (La Plaja), where saturated sand deposits exhibit a marked susceptibility to liquefaction. Laboratory cyclic tests were performed to characterise the non linear soil behaviour, which may occur during strong earthquakes, such as the 1693 scenario earthquake (see 1). Two boreholes were made, in which down-hole velocity measurements have been executed, and undisturbed samples were retrieved. Resonant column tests and cyclic loading torsional shear tests were performed to investigate the initial shear modulus Go and shear modulus degradation with shear strain, as well as damping ratio degradation (2.4). The Catania Project E. Faccioli and V. Pessina All the results produced in map form, or referred to a specific map location, are now available in different GIS layers that can be accessed through the GNDT Web site http://emidius.itim.mi.cnr.it/GNDT/h ome.html (Progetto Esecutivo 1998, under 6B.1).

12. Geognostic Investigation In-Situ TestY Survey’s Year1999 Borehole stratigraphyY SPTY SPT-max. depth40 m CPTY CPT-max. depth40 m Survey’s closest distance from station (m)  100 m Raw data availabilityY Type of raw dataD References E. Faccioli and V. Pessina “The Catania Project”

15. SPT profiles

16. Geotechnical Laboratory Analysis Lab. TestY Survey’s Year1999  Y Resonant Column Test (G-g-D curves) Y Torsional Shear TestY Triaxial Cyclic Loading TestN Survey’s closest distance from station (m)  100 m Raw data availabilityY Type of raw dataD References E. Faccioli and V. Pessina “The Catania Project”

17. Resonant Column Test and Torsional Shear Test

18. E. Faccioli and V. Pessina “The Catania Project”

19. Geophysical Data In-Situ TestY Survey’s Year1999 P-wave velocityN P-depth P-method S-wave velocityY S-depthAt least 30 m S-methodCH - DH – SASW QpN Qp-depth Qp-method QsN Qs-depth Qs-method Survey’s closest distance from station (m)  100 m (DH) Raw data availabilityY Type of raw dataD EC8_CodeC References E. Faccioli and V. Pessina “The Catania Project”

20. V s30 Map E. Faccioli and V. Pessina “The Catania Project” DH – CH - SASW

21. Noise Recordings In-Situ TestY Survey’s Year1999 Single station measurementsY duration of measurements Raw data availabilityY Array measurementsN duration of meas. in central station Raw data availability References E. Faccioli and V. Pessina “The Catania Project”

24. V s Profile - FTAN

25. Site Response Site Response AnalysisY Survey’s Year1999 Experimental Studies Earthquake Records Y Experimental Studies Ambient Noise Records Theoretical Studies 1DY Theoretical Studies 2D Theoretical Studies 3D References E. Faccioli and V. Pessina “The Catania Project”

26. Contact Information InstituteSSN-DPC PersonFabio Sabetta e-mail fabio.sabetta@protezionecivile.it