Station Overview

Overview Location not available
Picture Gallery details...
Network CH
Station Code EWZT0
Station Description Zuerich, Triemli, ZH
Latitude (WGS84) 47.36683
Longitude (WGS84) 8.49675
Station altitude (CH1903) 462.0
running from 2009-10-10
...until now
Waveform Access open
Sensor Types Accelerometer Velocimeter
Geological Unit Colluvial deposits
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 Hillside
Ground type EC8
Ground type SIA
Basin Information not in a sedimentary basin with possible 2D/3D effects
Reference
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 BT
Opening Date 07-07-2015
End Date 2016-06-07
Housing Class Borehole
Housing Description casing: plastic; casing length: 250m; inner diameter: ~20cm; locking mechanism: casing filled with concrete; dry
sensor depth below station 250.0 m
Distance to Building (m) 20
Location Code (none)
Opening Date 30-01-2018
End Date -
Housing Class Urban free-field
Housing Description SED small pot concrete vault; 10 floor hospital building close-by. Distance to building: 20m
sensor depth below station 0.5 m
Distance to Building (m) -
Location Code (none)
Opening Date 10-10-2009
End Date 2010-07-27
Housing Class Borehole
Housing Description casing: plastic; casing length: 250m; inner diameter: ~20cm; locking mechanism: casing filled with concrete; dry
sensor depth below station 250.0 m
Distance to Building (m) 20
Location Code SF
Opening Date 09-02-2016
End Date 2018-02-01
Housing Class Urban free field
Housing Description SED small pot concrete vault; 10 floor hospital building close-by
sensor depth below station 0.5 m
Distance to Building (m) 20

Current Instrumentation

Location code (none)
On date 01-02-2018 08:06:09
Off date -
Sensor model EpiSensor ES-T
Sensor manufacturer Kinemetrics
Digitizer model Centaur
Digitizer manufacturer Nanometrics
Channels HGE , HGN , HGZ
Stream Noise (last week) HGE , HGN , HGZ
Location code BT
On date 07-07-2015 00:00:00
Off date 2016-06-07 00:00:00
Waveform Access open
Sensor model LE-3DliteMkII
Sensor manufacturer Lennartz
Digitizer model Centaur
Digitizer manufacturer Nanometrics
Channels EH2 , EH3 , EHZ
Location code (none)
On date 30-01-2018 10:48:45
Off date 2018-02-01 08:06:09
Waveform Access open
Sensor model EpiSensor ES-T
Sensor manufacturer Kinemetrics
Digitizer model Centaur
Digitizer manufacturer Nanometrics
Channels HGE , HGN , HGZ
Location code (none)
On date 22-10-2009 00:00:00
Off date 2010-07-27 00:00:00
Waveform Access open
Sensor model LE-3DliteMkII
Sensor manufacturer Lennartz
Digitizer model Taurus
Digitizer manufacturer Nanometrics
Channels EH2 , EH3 , EHZ
Location code SF
On date 02-03-2016 11:00:00
Off date 2018-01-30 10:48:45
Waveform Access open
Sensor model EpiSensor ES-T
Sensor manufacturer Kinemetrics
Digitizer model Centaur
Digitizer manufacturer Nanometrics
Channels HGE , HGN , HGZ
Location code SF
On date 09-02-2016 00:00:00
Off date 2016-03-02 11:00:00
Waveform Access open
Sensor model EpiSensor ES-T
Sensor manufacturer Kinemetrics
Digitizer model Centaur
Digitizer manufacturer Nanometrics
Channels HGE , HGN , HGZ

Site Characterization

channel group
Empirical Amplification
CH.EWZT0..HG not available
CH.EWZT0.SF.HG not available
CH.EWZT0..EH not available
CH.EWZT0.BT.EH 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...