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Station Overview

Overview Location
Picture Gallery details...
Network CH
Station Code BRANT
Station Description Les Verrieres, NE
Latitude (WGS84) 46.93801
Longitude (WGS84) 6.47298
Station altitude (CH1903) 1145.0
running from 2002-10-10
...until now
Waveform Access open
Sensor Types Accelerometer Velocimeter
Geological Unit Limestone of Upper Sequanian age (Oxfordian - Jurassic)
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 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) 1.18
Uncertainty Factor -
Vs 30 (m/s) 1079
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 10-10-2002
End Date -
Housing Class Cave
Housing Description Sensor in cave 6m directly below free surface, 50m from nearest entrance. Sensor placed on 0.2m high concrete pedestal on rock.
sensor depth below station -0.2 m
Distance to Building (m) -

Current Instrumentation

Location code (none)
On date 16-11-2017 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 16-11-2017 16:00:00
Off date -
Sensor model STS2.5
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 14-06-2017 12:00:00
Off date 2017-11-16 16:00:00
Waveform Access open
Sensor model STS2.5
Sensor manufacturer Streckeisen
Digitizer model Trident
Digitizer manufacturer Nanometrics
Channels BHE , BHN , BHZ , HHE , HHN , HHZ
Location code (none)
On date 06-11-2002 00:00:00
Off date 2017-06-14 12:00:00
Waveform Access open
Sensor model STS2_gen3
Sensor manufacturer Streckeisen
Digitizer model Trident
Digitizer manufacturer Nanometrics
Channels BHE , BHN , BHZ , HHE , HHN , HHZ
Location code (none)
On date 10-10-2002 18:42:00
Off date 2002-11-06 00:00:00
Waveform Access open
Sensor model STS2_gen3
Sensor manufacturer Streckeisen
Digitizer model Trident
Digitizer manufacturer Nanometrics
Channels HHE , HHN , HHZ

Site Characterization

channel group
 Empirical Amplification
CH.BRANT..HH not available
CH.BRANT..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.

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Authoritative Site Characterization Analysis details...
measurements nearby list...