Servizio Sismico Nazionale NERIES JRA4 Meeting Rome 4 and 5 December 2006    TASK A: SITE SELECTION Monography of the station FORLI’ Station code FOR__

General Site Information Code FOR__ Site Name-Location FORLI’ Surface Geology So Location of the site

Geographical Data Latitude 44.199409 Longitude 12.041916 Altitude (m) 77 Location of the station

Site Description – Housing Table Broader area Ur Picture Y Free Field Type of network Per Instrument location Orientation [L+] Address Via Campo di Marte Location of the station

Location of the station

Earthquake Recordings Type of Instrument D Present Condition Def Date of activation 2005/10/28 Date of deactivation Strong Motion Records Y number of records with PGA<0.1 4 number of records with PGA>=0.1 maximum recorded PGA (g) 0.053 Date of Max PGA recorded 2005/07/15 Source INGV

Morphological Data Morfology Pl Basin Geometry Width Depth Length Closest Distance from Edge (Km)

Geological Data Geological map Y Stratigraphy & Lithology Bedrock Depth (m) > 100 m Ground water table Water table depth 3.5 m

Geological map Geological sketchs

CH and DH Geological map Marcellini et al.,2002 “Elementi di sismicità dell’area Forlì-Cesena ai fini del Piano Territoriale di Coordinamento Provinciale” , Istituto per la Dinamica dei Processi Ambientali, CNR Location of the station

Geognostic Investigation In-Situ Test Y Survey’s Year 2002 Borehole stratigraphy SPT N SPT-max. depth CPT Y (234 CPT) CPT-max. depth 50 m Survey’s closest distance from station (m) Raw data availability Type of raw data D References Marcellini et al.,2002 “Elementi di sismicità dell’area Forlì-Cesena ai fini del Piano Territoriale di Coordinamento Provinciale” , Istituto per la Dinamica dei Processi Ambientali, CNR

Borehole stratigraphy Limo argilloso e sabbia fine e molto Limo sabbioso e ghiaia media Ghiaia media Limo sabbioso Sabbia limosa e sabbia molto fine Sabbia molto fine Argilla limosa Ghiaia media e sabbia grossa (Ls1) (SAL1) (Sa1) (Gh1) (Ar1) (Sa2) (Gh2) (GhS) (Gh3) (Ls2) (Ls3) (LGh) (LaS) 1.5 6 8 10 13 17 18 27.5 28.5 32 44 44.8 48 50.5 55 (Sa3) (Gh4) Alluvium

234 CPT measurements!! Marcellini et al.,2002 “Elementi di sismicità dell’area Forlì-Cesena ai fini del Piano Territoriale di Coordinamento Provinciale” , Istituto per la Dinamica dei Processi Ambientali, CNR

Geotechnical Laboratory Analysis Lab. Test N Survey’s Year g Y Resonant Column Test (G-g-D curves) Torsional Shear Test Triaxial Cyclic Loading Test Survey’s closest distance from station (m) Raw data availability Type of raw data References Marcellini et al.,2002 “Elementi di sismicità dell’area Forlì-Cesena ai fini del Piano Territoriale di Coordinamento Provinciale” , Istituto per la Dinamica dei Processi Ambientali, CNR

L. Martelli (Regione Emilia Romagna) Geophysical Data In-Situ Test Y Survey’s Year 2002 P-wave velocity P-depth 55 m P-method DH (8) S-wave velocity S-depth 55 m - 100 m S-method DH - CH (2) – SC Qp N Qp-depth Qp-method Qs Qs-depth Qs-method Survey’s closest distance from station (m) 2000 m Raw data availability Type of raw data D EC8_Code B References L. Martelli (Regione Emilia Romagna) Marcellini et al.,2002 “Elementi di sismicità dell’area Forlì-Cesena ai fini del Piano Territoriale di Coordinamento Provinciale” , Istituto per la Dinamica dei Processi Ambientali, CNR

Location surveyings

Vs and Vp Profiles (DH) 5 10 15 20 25 30 35 40 45 50 55 400 800 1200 1600 Vs, Vp [m/s] Vs Vp 0.1 0.2 0.3 0.4 0.5 n z [m]

Vs and Vp Profiles (DH) 3.0 – 4.0 342 629 4.0 – 5.0 351 667 5.0 – 6.0 Profondità [m] Velocità onde S [m/s] Velocità onde P [m/s] 3.0 – 4.0 342 629 4.0 – 5.0 351 667 5.0 – 6.0 326 713 6.0 – 7.0 279 769 7.0 – 8.0 272 822 8.0 – 9.0 352 981 9.0 – 10.0 473 1148 10.0 – 11.0 416 1108 11.0 – 12.0 295 1050 12.0 – 13.0 285 1069 13.0 – 14.0 242 1049 14.0 – 15.0 209 1043 15.0 – 16.0 185 1042 16.0 – 17.0 282 1024 17.0 – 18.0 393 1038 18.0 – 19.0 455 1075 19.0 – 20.0 453 1112 20.0 – 21.0 448 1149 21.0 – 22.0 469 1130 22.0 – 23.0 509 1076 23.0 – 24.0 538 1073 24.0 – 25.0 518 1219 25.0 – 26.0 535 1231 26.0 – 27.0 531 1322 27.0 – 28.0 501 1399 28.0 – 29.0 1308 0.0 – 1.0 Ls1 1.0 – 2.0 2.0 – 3.0 SAL1 Ls2 Sa1 Gh1 Ar1 Sa2 Gh2 Sa3

Profondità [m] Velocità onde S [m/s] Velocità onde P [m/s] 29.0 – 30.0 743 1362 30.0 – 31.0 690 1331 31.0 – 32.0 619 1270 32.0 – 33.0 659 1244 33.0 – 34.0 774 1342 34.0 – 35.0 830 1525 35.0 – 36.0 801 1496 36.0 – 37.0 746 1336 37.0 – 38.0 722 1293 38.0 – 39.0 758 1320 39.0 – 40.0 811 1333 40.0 – 41.0 807 41.0 – 42.0 719 1292 42.0 – 43.0 656 1250 43.0 – 44.0 582 44.0 – 45.0 500 1386 45.0 – 46.0 585 1243 46.0 – 47.0 674 1219 47.0 - 48.0 623 1391 48.0 – 49.0 616 1245 49.0 – 50.0 565 1030 50.0 – 51.0 420 938 51.0 – 52.0 350 1050 52.0 – 53.0 378 1167 53.0 – 54.0 416 1146 54.0 – 55.0 418 1143 GhS Gh3 Ls3 Gh4 LGh LaS

Marcellini et al.,2002 “Elementi di sismicità dell’area Forlì-Cesena ai fini del Piano Territoriale di Coordinamento Provinciale” , Istituto per la Dinamica dei Processi Ambientali, CNR Location of the station

Vs Profiles Marcellini et al.,2002 “Elementi di sismicità dell’area Forlì-Cesena ai fini del Piano Territoriale di Coordinamento Provinciale” , Istituto per la Dinamica dei Processi Ambientali, CNR

Noise Recordings In-Situ Test N Survey’s Year Single station measurements duration of measurements Raw data availability Array measurements duration of meas. in central station References

Site Response Site Response Analysis Y Survey’s Year 2002 Experimental Studies Earthquake Records Experimental Studies Ambient Noise Records Theoretical Studies 1D Theoretical Studies 2D Theoretical Studies 3D References Marcellini et al.,2002 “Elementi di sismicità dell’area Forlì-Cesena ai fini del Piano Territoriale di Coordinamento Provinciale” , Istituto per la Dinamica dei Processi Ambientali, CNR Amplification function

Response Spectra

Contact Information Institute SSN-DPC Person Fabio Sabetta e-mail fabio.sabetta@protezionecivile.it