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Station Overview

Overview Location not available
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Network 2A
Station Code VISP4
Station Description VISP4, VS
Latitude (WGS84) 46.30145
Longitude (WGS84) 7.891016
Station altitude (CH1903) 650.0
running from 2007-11-27
...until 2008-05-12
Waveform Access open
Sensor Types Velocimeter
Geological Unit Alluvium
Site Morphology Class T1
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 Edge of the Rhone alluvial plain
Ground type EC8 E
Ground type SIA E
Basin Information Rhone basin, interface at fundamental frequency at 11 m depth
Reference Burjanek Jan, Fäh D., Michel C., Dalguer L., Baumann C., Gassner-Stamm G., Poggi V., Roten D., Laue J., Marin A., Lestuzzi P., Karbassi A., "Earthquake Damage Scenario in Visp (Switzerland): From Active Fault to Building Damage", Lisbon, Portugal, 2012
Resonance Frequency (Hz) -
Uncertainty Factor -
Vs 30 (m/s) 586
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 27-11-2007
End Date 2008-05-12
Housing Class Building
Housing Description Ground floor of a concrete building (concrete slab)
sensor depth below station 0.0 m
Distance to Building (m) -

Current Instrumentation

No open epochs

Location code (none)
On date 27-11-2007 00:00:00
Off date 2008-05-12 00:00:00
Waveform Access open
Sensor model LE-3D-5s
Sensor manufacturer Lennartz
Digitizer model
Digitizer manufacturer
Channels EHE , EHN , EHZ

Site Characterization

channel group
 Empirical Amplification
2A.VISP4..EH 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...
measurements nearby list...