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Station Overview

Overview Location not available
Picture Gallery details...
Network CH
Station Code SGEM
Station Description Geneve, Marziano, GE
Latitude (WGS84) 46.193
Longitude (WGS84) 6.13
Station altitude (CH1903) 377.0
running from 1992-06-05
...until 2004-02-23
Waveform Access open
Sensor Types Accelerometer
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 In the Rhone alluvial plain
Ground type EC8
Ground type SIA
Basin Information Rhone basin
Reference
Resonance Frequency (Hz) 3.39
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 05-06-1992
End Date 2004-02-23
Housing Class Urban free field
Housing Description Basement 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 01-01-2004 00:00:00
Off date 2004-02-23 00:00:00
Waveform Access open
Sensor model AC-23
Sensor manufacturer GeoSIG
Digitizer model
Digitizer manufacturer
Channels HGE , HGN , HGZ
Location code (none)
On date 05-06-1992 00:00:00
Off date 2003-12-31 00:00:00
Waveform Access open
Sensor model AC-23
Sensor manufacturer GeoSIG
Digitizer model
Digitizer manufacturer
Channels HGE , HGN , HGZ

Site Characterization

channel group
 Empirical Amplification
CH.SGEM..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 -
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