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Station Overview

Overview Location not available
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Network CH
Station Code LASAR
Station Description La Sarraz, Réservoir des Aleveys, VD
Latitude (WGS84) 46.66648
Longitude (WGS84) 6.49025
Station altitude (CH1903) 616.0
running from 2023-01-19
...until now
Waveform Access open
Sensor Types Velocimeter
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 (none)
Opening Date 19-01-2023
End Date -
Housing Class Urban free field
Housing Description Sensor in basement in NW corner of 1 story building (waterreservoir) with building footprint 3m x 4.5m. Sensor placed on concrete floor.
sensor depth below station 6.0 m
Distance to Building (m) -

Current Instrumentation

Location code (none)
On date 19-01-2023 18:00:00
Off date -
Sensor model Trillium Compact 120s
Sensor manufacturer Nanometrics
Digitizer model Centaur
Digitizer manufacturer Nanometrics
Channels BHE , BHN , BHZ , HHE , HHN , HHZ
Stream Noise (last week) BHE , BHN , BHZ , HHE , HHN , HHZ

Site Characterization

channel group
 Empirical Amplification
CH.LASAR..HH 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...