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Station Overview

Overview Location
Picture Gallery details...
Network CH
Station Code WIMIS
Station Description Wimmis, BE
Latitude (WGS84) 46.66488
Longitude (WGS84) 7.62418
Station altitude (CH1903) 770.0
running from 2000-05-24
...until now
Waveform Access open
Sensor Types Accelerometer Velocimeter
Geological Unit Limestone (Upper Jurassic)
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 Foot of a cliff
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) 1.43
Uncertainty Factor -
Vs 30 (m/s) 1440
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 24-05-2000
End Date -
Housing Class Tunnel
Housing Description Sensor in tunnel, 30m directly below free surface, 2m from nearest entrance. Sensor on granite slab on rock. At base of steep alpine cliff.
sensor depth below station 0.0 m
Distance to Building (m) -

Current Instrumentation

Location code (none)
On date 22-07-2020 16:00:00
Off date -
Sensor model EpiSensor ES-T
Sensor manufacturer Kinemetrics
Digitizer model Q330HRS
Digitizer manufacturer Quanterra
Channels HGE , HGN , HGZ
Stream Noise (last week) HGE , HGN , HGZ
Location code (none)
On date 22-07-2020 16:00:00
Off date -
Sensor model STS2_gen3
Sensor manufacturer Streckeisen
Digitizer model Q330HRS
Digitizer manufacturer Quanterra
Channels BHE , BHN , BHZ , HHE , HHN , HHZ
Stream Noise (last week) BHE , BHN , BHZ , HHE , HHN , HHZ
Location code (none)
On date 21-07-2005 00:00:00
Off date 2020-07-22 16:00:00
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 24-05-2000 00:00:00
Off date 2005-07-21 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.WIMIS..HG not available
CH.WIMIS..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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