Station Overview

Overview Location not available
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Network CH
Station Code BIBA
Station Description Brigerbad, VS
Latitude (WGS84) 46.30255
Longitude (WGS84) 7.93038
Station altitude (CH1903) 660.0
running from 2009-10-27
...until 2022-09-19
Waveform Access open
Sensor Types Accelerometer
Geological Unit Augen gneiss of the Aarmassif
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 Base of the rock slope of the Rhone valley
Ground type EC8
Ground type SIA
Basin Information not in a sedimentary basin with possible 2D/3D effects
Reference this is first author name your first author forename, your secondary authors, "this is title", this is place, 1984
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 27-10-2009
End Date 2022-09-19
Housing Class Free field
Housing Description Small cave in a cliff used as cellar (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 27-10-2009 00:00:00
Off date 2022-09-19 13:00:00
Waveform Access open
Sensor model EpiSensor ES-T
Sensor manufacturer Kinemetrics
Digitizer model Taurus
Digitizer manufacturer Nanometrics
Channels HGE , HGN , HGZ

Site Characterization

channel group
Empirical Amplification
CH.BIBA..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.

H/V pick image: not available
Authoritative Site Characterization Analysis -
measurements nearby list...