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Station Overview

Overview Location not available
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Network CH
Station Code PIORA
Station Description Piora-Tunnel, TI
Latitude (WGS84) 46.53729
Longitude (WGS84) 8.78328
Station altitude (CH1903) 817.0
running from 2007-12-10
...until 2011-08-23
Waveform Access restricted
Sensor Types Accelerometer Velocimeter
Geological Unit Dolomite (Triassic)
Site Morphology Class T2
T1: flat; T2: slope; T3: ridge and T4: steep ridge;
following Pessina and Fiorini (2014) A GIS procedure for fast topographic characterization of seismic recording stations, Soil Dynamics and Earthquake Engineering, 63, p248-258
Site Morphology Description Rock slope
Ground type EC8
Ground type SIA
Basin Information not in a sedimentary basin with possible 2D/3D effects
Reference
Resonance Frequency (Hz) -
Uncertainty Factor -
Vs 30 (m/s) -
Location Map


Federal Office of Topograpy: National Map 1:25‘000
Topography Map


Federal Office of Topograpy: DHM25: Digital Height Model 1:25000
Geology Map

Federal Office of Topograpy: Geological map of Switzerland 1:500‘000

Sensor locations

Location Code (none)
Opening Date 10-12-2007
End Date 2011-08-23
Housing Class Tunnel
Housing Description Tunnel (sensor on a concrete pedestal)
sensor depth below station 0.0 m
Distance to Building (m) -

Current Instrumentation

No open epochs

Location code (none)
On date 26-06-2009 00:00:00
Off date 2011-08-23 00:00:00
Waveform Access restricted
Sensor model STS2_gen3
Sensor manufacturer Streckeisen
Digitizer model HRD24
Digitizer manufacturer Nanometrics
Channels BHE , BHN , BHZ , HHE , HHN , HHZ
Location code (none)
On date 16-01-2008 00:00:00
Off date 2009-06-26 00:00:00
Waveform Access restricted
Sensor model STS2_gen3
Sensor manufacturer Streckeisen
Digitizer model HRD24
Digitizer manufacturer Nanometrics
Channels BHE , BHN , BHZ , HHE , HHN , HHZ
Location code (none)
On date 16-01-2008 00:00:00
Off date 2008-04-02 00:00:00
Waveform Access restricted
Sensor model EpiSensor ES-T
Sensor manufacturer Kinemetrics
Digitizer model HRD24
Digitizer manufacturer Nanometrics
Channels HGE , HGN , HGZ
Location code (none)
On date 10-12-2007 00:00:00
Off date 2008-01-16 00:00:00
Waveform Access open
Sensor model EpiSensor ES-T
Sensor manufacturer Kinemetrics
Digitizer model HRD24
Digitizer manufacturer Nanometrics
Channels HGE , HGN , HGZ
Location code (none)
On date 10-12-2007 00:00:00
Off date 2008-01-16 00:00:00
Waveform Access open
Sensor model STS2_gen3
Sensor manufacturer Streckeisen
Digitizer model HRD24
Digitizer manufacturer Nanometrics
Channels BHE , BHN , BHZ , HHE , HHN , HHZ

Site Characterization

channel group
 Empirical Amplification
CH.PIORA..HH not available
CH.PIORA..HG not available

Obtained from spectral modeling of small earthquakes with constant update.

  • Top: Fourier amplification with elastic (dashed line) and anelastic (solid line) amplification functions;
  • Centre: 5% damped response spectra amplification (anelastic);
  • Bottom: Number of recordings used.

See Edwards et al. (2013), Determination of Site Amplification from Regional Seismicity: Application to the Swiss National Seismic Networks. Seismological Research Letters, 84(4), 611–621.

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Authoritative Site Characterization Analysis -
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