Station Overview

Overview Location not available
Picture Gallery details...
Network CH
Station Code SEM1
Station Description Emosson, SEM1, VS
Latitude (WGS84) 46.0677
Longitude (WGS84) 6.9346
Station altitude (CH1903) 1979.0
running from 1997-12-10
...until 2017-07-01
Waveform Access restricted
Sensor Types Accelerometer
Geological Unit
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
Ground type EC8
Ground type SIA
Basin Information not in a sedimentary basin with possible 2D/3D effects
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 10-12-1997
End Date 2017-07-01
Housing Class Dam
Housing Description Screwed on the concrete wall
sensor depth below station 0.0 m
Distance to Building (m) -

Current Instrumentation

No open epochs

Location code (none)
On date 10-12-1997 00:00:00
Off date 2017-07-01 08:11:00
Waveform Access restricted
Sensor model MS2002
Sensor manufacturer Syscom
Digitizer model MR2002
Digitizer manufacturer Syscom
Channels HG2 , HG3 , HGZ

Site Characterization

channel group
Empirical Amplification
CH.SEM1..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...