MENU

Station Overview

Overview Location not available
Picture Gallery details...
Network CH
Station Code VDL
Station Description Valle di Lei, GR
Latitude (WGS84) 46.48318
Longitude (WGS84) 9.44956
Station altitude (CH1903) 1927.0
running from 1983-07-06
...until now
Waveform Access open
Sensor Types Accelerometer Velocimeter
Geological Unit Quartzite of Permian age
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 AH
Opening Date 06-07-1983
End Date 2002-01-02
Housing Class Tunnel
Housing Description Sensors in tunnel 30m from edge of dam, 20m directly below free surface, 40m from nearest entrance. Sensors placed on marble plate on concrete floor on rock. Access tunnel.
sensor depth below station 0.0 m
Distance to Building (m) -
Location Code FH
Opening Date 06-07-1983
End Date 1992-09-30
Housing Class Tunnel
Housing Description Sensors in tunnel 30m from edge of dam, 20m directly below free surface, 40m from nearest entrance. Sensors placed on marble plate on concrete floor on rock. Access tunnel.
sensor depth below station 0.0 m
Distance to Building (m) -
Location Code (none)
Opening Date 03-12-2015
End Date -
Housing Class Tunnel
Housing Description Sensor in tunnel 30m directly below free surface, 40m from nearest entrance. 30m from edge of dam. Adit tunnel. Sensor placed on marble plate placed on concrete floor on rock.
sensor depth below station 0.0 m
Distance to Building (m) -
Location Code (none)
Opening Date 14-04-1998
End Date 2015-12-03
Housing Class Tunnel
Housing Description Sensors in tunnel 30m from edge of dam, 20m directly below free surface, 40m from nearest entrance. Sensors placed on marble plate on concrete floor on rock. Access tunnel.
sensor depth below station 0.0 m
Distance to Building (m) -

Current Instrumentation

Location code (none)
On date 06-12-2022 10:18:00
Off date -
Sensor model EpiSensor ES-T
Sensor manufacturer Kinemetrics
Digitizer model Centaur
Digitizer manufacturer Nanometrics
Channels HGE , HGN , HGZ
Stream Noise (last week) HGE , HGN , HGZ
Location code (none)
On date 06-12-2022 10:18:00
Off date -
Sensor model STS2_gen3
Sensor manufacturer Streckeisen
Digitizer model Centaur
Digitizer manufacturer Nanometrics
Channels BHE , BHN , BHZ , HHE , HHN , HHZ
Stream Noise (last week) BHE , BHN , BHZ , HHE , HHN , HHZ
Location code AH
On date 18-11-1987 00:00:00
Off date 2002-01-02 14:00:00
Waveform Access open
Sensor model Mk IIIA
Sensor manufacturer Willmore
Digitizer model AHP
Digitizer manufacturer HP
Channels SHZ
Location code AH
On date 06-07-1983 00:00:00
Off date 1987-11-18 00:00:00
Waveform Access open
Sensor model Mk IIIA
Sensor manufacturer Willmore
Digitizer model AHP
Digitizer manufacturer HP
Channels SHZ
Location code FH
On date 18-11-1987 00:00:00
Off date 1992-09-30 00:00:00
Waveform Access open
Sensor model Mk IIIA
Sensor manufacturer Willmore
Digitizer model FHP
Digitizer manufacturer HP
Channels SHZ
Location code FH
On date 06-07-1983 00:00:00
Off date 1987-11-18 00:00:00
Waveform Access open
Sensor model Mk IIIA
Sensor manufacturer Willmore
Digitizer model FHP
Digitizer manufacturer HP
Channels SHZ
Location code (none)
On date 03-12-2015 15:00:00
Off date 2022-12-06 10:18:00
Waveform Access open
Sensor model EpiSensor ES-T
Sensor manufacturer Kinemetrics
Digitizer model Centaur
Digitizer manufacturer Nanometrics
Channels HGE , HGN , HGZ
Location code (none)
On date 03-12-2015 15:00:00
Off date 2022-12-06 10:18:00
Waveform Access open
Sensor model STS2_gen2
Sensor manufacturer Streckeisen
Digitizer model Centaur
Digitizer manufacturer Nanometrics
Channels BHE , BHN , BHZ , HHE , HHN , HHZ
Location code (none)
On date 20-10-2003 00:00:00
Off date 2015-12-03 15:00:00
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 09-07-1999 00:00:00
Off date 2015-12-03 15:00:00
Waveform Access open
Sensor model STS2_gen3
Sensor manufacturer Streckeisen
Digitizer model HRD24
Digitizer manufacturer Nanometrics
Channels BHE , BHN , BHZ , HHE , HHN , HHZ
Location code (none)
On date 26-09-1998 00:00:00
Off date 1999-07-09 00:00:00
Waveform Access open
Sensor model STS2
Sensor manufacturer Streckeisen
Digitizer model HRD24
Digitizer manufacturer Nanometrics
Channels BHE , BHN , BHZ , HHE , HHN , HHZ
Location code (none)
On date 14-04-1998 00:00:00
Off date 1998-09-26 00:00:00
Waveform Access open
Sensor model STS2
Sensor manufacturer Streckeisen
Digitizer model HRD24
Digitizer manufacturer Nanometrics
Channels HHE , HHN , HHZ

Site Characterization

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

H/V pick image:
Authoritative Site Characterization Analysis -
measurements nearby list...