Station Overview

legend Overview at SRHE
Overview Location
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Network CH
Station Code SRHE
Station Description Riehen, Erlenstraesschen, BS
Latitude (WGS84) 47.58559
Longitude (WGS84) 7.64945
Station altitude (CH1903) 279.0
running from 2013-12-17
...until now
Waveform Access open
Sensor Types Accelerometer
Geological Unit Alluvial terrace (Pleistocene)
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 a terrace above the Wiese plain
Ground type EC8 B
Ground type SIA C
Basin Information Wiese basin, interface at fundamental frequency at 500 m depth
Reference Michel Clotaire, Cauzzi C., Hobiger M., Poggi V., Burjanek J., Fäh D., "Riehen - Erlensträsschen (SRHE) Site characterization report", Swiss Seismological Service, ETH Zürich, 2015
Resonance Frequency (Hz) .59
Uncertainty Factor -
Vs 30 (m/s) 373
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 17-12-2013
End Date -
Housing Class Urban free field
Housing Description SED small vault
sensor depth below station 0.5 m
Distance to Building (m) 4

Current Instrumentation

Location code (none)
On date 17-12-2013 00:00:00
Off date -
Sensor model EpiSensor ES-T
Sensor manufacturer Kinemetrics
Digitizer model Taurus
Digitizer manufacturer Nanometrics
Channels HGE , HGN , HGZ
Stream Noise (last week) HGE , HGN , HGZ

Site Characterization

channel group
Empirical Amplification
CH.SRHE..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...
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