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Station Overview

Overview Location
Picture Gallery details...
Network CH
Station Code SBAT
Station Description Basel, Tropenhaus, BS
Latitude (WGS84) 47.5586
Longitude (WGS84) 7.5817
Station altitude (CH1903) 260.0
running from 2005-01-20
...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 Terrace above Rhine plain
Ground type EC8 B
Ground type SIA C
Basin Information Rhine basin
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) .75
Uncertainty Factor -
Vs 30 (m/s) 380
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 20-01-2005
End Date 2019-08-20
Housing Class Free field
Housing Description Basement of a greenhouse (concrete slab)
sensor depth below station 0.0 m
Distance to Building (m) -

Current Instrumentation

No open epochs

Location code (none)
On date 29-06-2010 00:00:00
Off date 2019-08-20 08:00:00
Waveform Access open
Sensor model EpiSensor ES-T
Sensor manufacturer Kinemetrics
Digitizer model Taurus
Digitizer manufacturer Nanometrics
Channels HGE , HGN , HGZ
Location code (none)
On date 12-04-2006 00:00:00
Off date 2010-06-29 00:00:00
Waveform Access open
Sensor model EpiSensor ES-T
Sensor manufacturer Kinemetrics
Digitizer model Taurus
Digitizer manufacturer Nanometrics
Channels HGE , HGN , HGZ
Location code (none)
On date 30-03-2006 11:00:00
Off date 2006-04-12 00:00:00
Waveform Access open
Sensor model EpiSensor ES-T
Sensor manufacturer Kinemetrics
Digitizer model Taurus
Digitizer manufacturer Nanometrics
Channels HGE , HGN , HGZ
Location code (none)
On date 20-01-2005 13:40:00
Off date 2006-03-30 11:00:00
Waveform Access open
Sensor model EpiSensor ES-T
Sensor manufacturer Kinemetrics
Digitizer model
Digitizer manufacturer
Channels HGE , HGN , HGZ
Location code (none)
On date 21-06-2004 00:00:00
Off date 2005-01-20 13:40:00
Waveform Access restricted
Sensor model Unity gain generic accelerometer
Sensor manufacturer Generic
Digitizer model UNITY
Digitizer manufacturer generic
Channels EGE , EGN , EGZ

Site Characterization

channel group
 Empirical Amplification
CH.SBAT..EG not available
CH.SBAT..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:
Authoritative Site Characterization Analysis details...
measurements nearby list...