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NERIES JRA4 Meeting Rome 4 and 5 December 2006 TASK A: SITE SELECTION Monography of the station CROTONE Station code CRT__ Servizio Sismico Nazionale
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Location of the site General Site Information Code CRT__ Site Name-Location CROTONE Surface Geology So
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Geographical Data Latitude 39.077500 Longitude 17.126667 Altitude (m)9 Location of the station
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Broader areaUr PictureY Free FieldY Type of networkPer Instrument location Orientation [L+] Address Site Description – Housing Table Location of the station
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Earthquake Recordings Type of InstrumentA Present ConditionRem Date of activation 1975/09/10 Date of deactivation 1981/02/04 Strong Motion RecordsN number of records with PGA<0.1 number of records with PGA>=0.1 maximum recorded PGA (g) Date of Max PGA recorded Source
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MorfologyPl Basin Geometry Width Depth Length Closest Distance from Edge (Km) Morphological Data View of the area
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Geological Data Geological mapY Stratigraphy & Lithology Y Bedrock Depth (m)> 100 m Ground water tableY Water table depth< 10 m
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Geological map LAS AR LAS AR Geological sketch AR = overconsolidated clay LAS = silt – clay - sand
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Geognostic Investigation In-Situ TestY Survey’s Year2004 Borehole stratigraphyY SPTY SPT-max. depth CPTY CPT-max. depth Survey’s closest distance from station (m) 15 m Raw data availabilityY Type of raw dataD ReferencesProgetto Urban – Dr. G.Naso – Dr. I. Guerra Location surveyings
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Borehole stratigraphy S40 S48
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Geotechnical Laboratory Analysis Lab. TestY Survey’s Year2004 Y Resonant Column Test (G-g-D curves) Y Torsional Shear Test Triaxial Cyclic Loading Test Survey’s closest distance from station (m) Raw data availabilityY Type of raw dataD ReferencesProgetto Urban – Dr. G.Naso
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Geophysical Data In-Situ TestY Survey’s Year2004 P-wave velocityY P-depth30 m P-methodDH S-wave velocityY S-depth30 m S-methodDH QpN Qp-depth Qp-method QsN Qs-depth Qs-method Survey’s closest distance from station (m) Raw data availabilityY Type of raw dataD EC8_CodeC ReferencesProgetto Urban – Dr. G.Naso – Dr. I. Guerra
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V s Profiles
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Noise Recordings In-Situ TestY Survey’s Year2004 Single station measurementsY duration of measurements30’ Raw data availabilityY Array measurementsY duration of meas. in central station 30’ Raw data availabilityY ReferencesProgetto Urban – Dr. G.Naso – Dr. I. Guerra
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DH – Array2D: V s profiles comparison
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HVSR - S40. Scuola Principe di Piemonte Start recording: 15/07/05 14:19:37End recording: 15/07/05 14:49:37 Trace length: 0:30:00. Analysis performed on the entire trace. Sampling frequency: 128 Hz Window size: 20 s Smoothing window: Triangular window Smoothing: 10% Horizontal to Vertical Spectral Ratio HVSR time stability
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HVSR – S48. Quartiere Fondo Gesù Start recording: 15/07/05 17:05:54End recording: 15/07/05 17:25:55 GPS location: 017°06.9630 E, 39°05.1333 N UTC time: 15:02:00.289 Satellite no.: 03 Trace length: 0:20:00. Analysis performed on the entire trace. Sampling frequency: 128 Hz Window size: 20 s Smoothing window: Triangular window Smoothing: 10% Horizontal to Vertical Spectral Ratio HVSR time stability
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Site Response Site Response AnalysisN Survey’s Year Experimental Studies Earthquake Records Experimental Studies Ambient Noise Records Theoretical Studies 1D Theoretical Studies 2D Theoretical Studies 3D References
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Contact Information InstituteSSN-DPC PersonFabio Sabetta e-mail fabio.sabetta@protezionecivile.it
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