Station Overview

Overview Location not available
Picture Gallery details...
Network 9E
Station Code ZPT
Station Description Prime Tower, Zürich, ZH
Latitude (WGS84) 47.38611
Longitude (WGS84) 8.517167
Station altitude (CH1903) 404.0
running from 2021-04-01
...until 2022-09-16
Waveform Access open
Sensor Types Accelerometer
Geological Unit
Site Morphology Class
Site Morphology Description
Ground type EC8
Ground type SIA
Basin Information no information available
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 0E
Opening Date 22-09-2021
End Date 2021-10-04
Housing Class Building
Housing Description Sensor on 0. Floor (groundfloor) in E-corner of 36 story high rise building with non-standard building footprint (see pdf: primetower). Building type: concrete/steel. Building density: dense urban. Building usage: office building. The sensor is placed on cemented Terrazo. It is not screwed down as is usually the case with EPI’s. The sensor is not covered.
sensor depth below station 0.0 m
Distance to Building (m) -
Location Code 23
Opening Date 22-09-2021
End Date 2021-10-04
Housing Class Building
Housing Description Sensor on 23. Floor in E-corner of 36 story high rise building with non-standard building footprint (see pdf: primetower) Building type: concrete/steel. Building density: dense urban. Building usage: office building. The sensor is placed within hollow floor on concrete. It is not screwed down as is usually the case with EPI’s. The sensor is not covered.
sensor depth below station -78.6 m
Distance to Building (m) -
Location Code 6E
Opening Date 22-09-2021
End Date 2021-10-04
Housing Class Building
Housing Description Sensor on 6. Floor in E-corner of 36 story high rise building with non-standard building footprint (see pdf: primetower) Building type: concrete/steel. Building density: dense urban. Building usage: office building. The sensor is placed within hollow floor on concrete. It is not screwed down as is usually the case with EPI’s. The sensor is not covered.
sensor depth below station -21.3 m
Distance to Building (m) -
Location Code R1
Opening Date 18-05-2021
End Date 2022-09-16
Housing Class Building
Housing Description Sensors located at different positions, both in elevation and footprint, in the Prime Tower in Zurich, a 36 story high rise building with non-standard building footprint. Sensors are not screwed down, and are covered with an insulated metal pot. Building type: concrete/steel. Building density: dense urban. Building usage: office building.
sensor depth below station -122.4 m
Distance to Building (m) -
Location Code RE
Opening Date 05-08-2021
End Date 2021-10-04
Housing Class Building
Housing Description Sensor on top of the roof, in E-corner of 36 story high rise building with non-standard building footprint. The sensor is placed on top of the roof (concrete). It is not screwed down. The sensor is covered with an insulated metal pot.
sensor depth below station -122.4 m
Distance to Building (m) -
Location Code RN
Opening Date 05-08-2021
End Date 2021-09-05
Housing Class Building
Housing Description Sensor on top of the roof, in N-corner of 36 story building with building footprint (see pdf: primetowerroof) Building type: concrete/steel. Building density: dense urban town . Building usage: office building. The sensor is placed on top of the roof (concrete). It is not screwed down as is usually the case with EPI’s. The sensor is covered with an insulated metal pot.
sensor depth below station -122.4 m
Distance to Building (m) -
Location Code RN
Opening Date 01-04-2021
End Date 2021-05-18
Housing Class Building
Housing Description Sensors located at different positions, both in elevation and footprint, in the Prime Tower in Zurich, a 36 story high rise building with non-standard building footprint. Sensors are not screwed down, and are covered with an insulated metal pot. Building type: concrete/steel. Building density: dense urban. Building usage: office building.
sensor depth below station -122.4 m
Distance to Building (m) -
Location Code RN
Opening Date 01-04-2021
End Date 2021-05-18
Housing Class -
Housing Description -
sensor depth below station -122.4 m
Distance to Building (m) -
Location Code RS
Opening Date 05-08-2021
End Date 2021-09-03
Housing Class Building
Housing Description Sensor on top of the roof, in S-corner of 36 story high rise building with non-standard building footprint. The sensor is placed on top of the roof (concrete). It is not screwed down. The sensor is covered with an insulated metal pot.
sensor depth below station -122.4 m
Distance to Building (m) -
Location Code RW
Opening Date 05-08-2021
End Date 2021-09-03
Housing Class Building
Housing Description Sensor on top of the roof, in W-corner of 36 story high rise building with non-standard building footprint. The sensor is placed on top of the roof (concrete). It is not screwed down. The sensor is covered with an insulated metal pot.
sensor depth below station -122.4 m
Distance to Building (m) -

Current Instrumentation

No open epochs

Location code 0E
On date 22-09-2021 00:00:00
Off date 2021-10-04 23:00:00
Waveform Access open
Sensor model EpiSensor ES-T
Sensor manufacturer Kinemetrics
Digitizer model Centaur
Digitizer manufacturer Nanometrics
Channels HG2 , HG3 , HGZ
Location code 0E
On date 22-09-2021 00:00:00
Off date 2021-09-27 05:49:27
Waveform Access open
Sensor model blueSeis-3A
Sensor manufacturer iXblue
Digitizer model
Digitizer manufacturer
Channels HJ1 , HJ2 , HJ3
Location code 23
On date 22-09-2021 00:00:00
Off date 2021-10-04 23:00:00
Waveform Access open
Sensor model EpiSensor ES-T
Sensor manufacturer Kinemetrics
Digitizer model Centaur
Digitizer manufacturer Nanometrics
Channels HG2 , HG3 , HGZ
Location code 6E
On date 22-09-2021 00:00:00
Off date 2021-10-04 23:00:00
Waveform Access open
Sensor model EpiSensor ES-T
Sensor manufacturer Kinemetrics
Digitizer model Centaur
Digitizer manufacturer Nanometrics
Channels HG2 , HG3 , HGZ
Location code R1
On date 23-08-2021 00:00:00
Off date 2022-09-16 09:54:00
Waveform Access open
Sensor model blueSeis-3A
Sensor manufacturer iXblue
Digitizer model
Digitizer manufacturer
Channels HJ1 , HJ2 , HJ3
Location code R1
On date 18-05-2021 09:15:00
Off date 2022-09-16 09:54:00
Waveform Access open
Sensor model EpiSensor ES-T
Sensor manufacturer Kinemetrics
Digitizer model Centaur
Digitizer manufacturer Nanometrics
Channels HG2 , HG3 , HGZ
Location code RE
On date 05-08-2021 09:30:00
Off date 2021-10-04 23:00:00
Waveform Access restricted
Sensor model EpiSensor ES-T
Sensor manufacturer Kinemetrics
Digitizer model Centaur
Digitizer manufacturer Nanometrics
Channels HG2 , HG3 , HGZ
Location code RN
On date 05-08-2021 08:30:00
Off date 2021-09-11 00:00:00
Waveform Access open
Sensor model EpiSensor ES-T
Sensor manufacturer Kinemetrics
Digitizer model Centaur
Digitizer manufacturer Nanometrics
Channels HG2 , HG3 , HGZ
Location code RN
On date 01-04-2021 10:30:00
Off date 2021-05-18 09:15:00
Waveform Access open
Sensor model EpiSensor ES-T
Sensor manufacturer Kinemetrics
Digitizer model Centaur
Digitizer manufacturer Nanometrics
Channels HG2 , HG3 , HGZ
Location code RS
On date 05-08-2021 10:15:00
Off date 2021-09-03 00:00:00
Waveform Access open
Sensor model EpiSensor ES-T
Sensor manufacturer Kinemetrics
Digitizer model Centaur
Digitizer manufacturer Nanometrics
Channels HG2 , HG3 , HGZ
Location code RW
On date 05-08-2021 13:00:00
Off date 2021-09-03 00:00:00
Waveform Access open
Sensor model EpiSensor ES-T
Sensor manufacturer Kinemetrics
Digitizer model Centaur
Digitizer manufacturer Nanometrics
Channels HG2 , HG3 , HGZ

Site Characterization

channel group
Empirical Amplification
9E.ZPT.RN.HG not available
9E.ZPT.RE.HG not available
9E.ZPT.RW.HG not available
9E.ZPT.RS.HG not available
9E.ZPT.R1.HG not available
9E.ZPT.R1.HJ not available
9E.ZPT.0E.HJ not available
9E.ZPT.23.HG not available
9E.ZPT.0E.HG not available
9E.ZPT.6E.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...