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Station Overview

Overview Location
Picture Gallery details...
Network CH
Station Code GIMEL
Station Description St. Georges, Gimel, VD
Latitude (WGS84) 46.53364
Longitude (WGS84) 6.26545
Station altitude (CH1903) 1094.0
running from 1999-09-06
...until now
Waveform Access open
Sensor Types Accelerometer Velocimeter
Geological Unit Limestone of Lower Valanginian age (Cretaceous)
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 cliff on the Jura plateau
Ground type EC8 A
Ground type SIA A
Basin Information not in a sedimentary basin with possible 2D/3D effects
Reference Fäh Donat, Fritsche S., Poggi V. et al., "Determination of Site Information for Seismic Stations in Switzerland. Work Package 4: Pegasos Refinement Project", Swiss Seismological Service, ETH Zürich, 2009
Resonance Frequency (Hz) .52
Uncertainty Factor -
Vs 30 (m/s) 1496
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 06-09-1999
End Date -
Housing Class Tunnel
Housing Description Sensor in tunnel of a concrete structure, 30m directly below free surface, 15m from nearest entrance. Sensor placed on 0.2m high concrete pedestal on rock. 25 m high cliff.
sensor depth below station 0.0 m
Distance to Building (m) -

Current Instrumentation

Location code (none)
On date 11-05-2016 13:00:00
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 11-05-2016 13:00:00
Off date -
Sensor model Trillium 240s_g2
Sensor manufacturer Nanometrics
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 (none)
On date 20-10-2015 14:10:00
Off date 2016-05-11 13:00:00
Waveform Access open
Sensor model STS2.5
Sensor manufacturer Streckeisen
Digitizer model HRD24
Digitizer manufacturer Nanometrics
Channels BHE , BHN , BHZ , HHE , HHN , HHZ
Location code (none)
On date 06-09-1999 14:00:00
Off date 2015-10-20 14:10:00
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.GIMEL..HG not available
CH.GIMEL..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.

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Authoritative Site Characterization Analysis details...
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