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Station Overview

Overview Location
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Network CH
Station Code LLS
Station Description Linth-Limmern, GL
Latitude (WGS84) 46.84676
Longitude (WGS84) 9.00825
Station altitude (CH1903) 1860.0
running from 1975-01-11
...until now
Waveform Access open
Sensor Types Accelerometer Velocimeter
Geological Unit Limestone (Upper Jurassic)
Site Morphology Class T2
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 Rock slope
Ground type EC8 A
Ground type SIA A
Basin Information not in a sedimentary basin with possible 2D/3D effects
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) 1.34
Uncertainty Factor -
Vs 30 (m/s) 2925
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 AH
Opening Date 21-12-1978
End Date 2002-01-02
Housing Class Tunnel
Housing Description Sensors in injection tunnel of a dam site, 200m directly below free surface, 50m from nearest entrance. BB Sensor placed directly on concrete base on rock, SM Sensor placed on a separate concrete pad 0.2m above from the concrete base. BB & SM Sensor are not in the same insulation box. Alpine cliff.
sensor depth below station 0.0 m
Distance to Building (m) -
Location Code FH
Opening Date 06-12-1978
End Date 1992-09-30
Housing Class Tunnel
Housing Description Sensors in injection tunnel of a dam site, 200m directly below free surface, 50m from nearest entrance. BB Sensor placed directly on concrete base on rock, SM Sensor placed on a separate concrete pad 0.2m above from the concrete base. BB & SM Sensor are not in the same insulation box. Alpine cliff.
sensor depth below station 0.0 m
Distance to Building (m) -
Location Code (none)
Opening Date 11-01-1975
End Date -
Housing Class Tunnel
Housing Description Sensors in injection tunnel of a dam site, 200m directly below free surface, 50m from nearest entrance. BB Sensor placed directly on concrete base on rock, SM Sensor placed on a separate concrete pad 0.2m above from the concrete base. BB & SM Sensor are not in the same insulation box. Alpine cliff.
sensor depth below station 0.0 m
Distance to Building (m) -

Current Instrumentation

Location code (none)
On date 20-03-2019 15:00:00
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 (none)
On date 20-03-2019 15:00:00
Off date -
Sensor model STS2_gen3
Sensor manufacturer Streckeisen
Digitizer model Centaur
Digitizer manufacturer Nanometrics
Channels BHE , BHN , BHZ , HHE , HHN , HHZ
Stream Noise (last week) BHE , BHN , BHZ , HHE , HHN , HHZ
Location code AH
On date 30-09-1992 00:00:00
Off date 2002-01-02 14:00:00
Waveform Access open
Sensor model Mk IIIA
Sensor manufacturer Willmore
Digitizer model AHP
Digitizer manufacturer HP
Channels SHE , SHN , SHZ
Location code AH
On date 18-09-1986 00:00:00
Off date 1992-09-30 00:00:00
Waveform Access open
Sensor model Mk IIIA
Sensor manufacturer Willmore
Digitizer model AHP
Digitizer manufacturer HP
Channels SHE , SHN , SHZ
Location code AH
On date 21-12-1978 00:00:00
Off date 1986-09-18 00:00:00
Waveform Access open
Sensor model Mk IIIA
Sensor manufacturer Willmore
Digitizer model AHP
Digitizer manufacturer HP
Channels SHE , SHN , SHZ
Location code FH
On date 18-09-1986 00:00:00
Off date 1992-09-30 00:00:00
Waveform Access open
Sensor model Mk IIIA
Sensor manufacturer Willmore
Digitizer model FHP
Digitizer manufacturer HP
Channels SHE , SHN , SHZ
Location code FH
On date 21-12-1978 00:00:00
Off date 1986-09-18 00:00:00
Waveform Access open
Sensor model Mk IIIA
Sensor manufacturer Willmore
Digitizer model FHP
Digitizer manufacturer HP
Channels SHE , SHN , SHZ
Location code FH
On date 06-12-1978 00:00:00
Off date 1978-12-21 00:00:00
Waveform Access open
Sensor model Mk IIIA
Sensor manufacturer Willmore
Digitizer model FHP
Digitizer manufacturer HP
Channels SHE , SHN , SHZ
Location code (none)
On date 25-03-2004 00:00:00
Off date 2019-03-20 15:00:00
Waveform Access open
Sensor model EpiSensor ES-T
Sensor manufacturer Kinemetrics
Digitizer model
Digitizer manufacturer
Channels HGE , HGN , HGZ
Location code (none)
On date 25-03-2004 00:00:00
Off date 2019-03-20 15:00:00
Waveform Access open
Sensor model STS2_gen3
Sensor manufacturer Streckeisen
Digitizer model HRD24
Digitizer manufacturer Nanometrics
Channels BHE , BHN , BHZ , HHE , HHN , HHZ
Location code (none)
On date 19-01-1999 00:00:00
Off date 2004-03-25 00:00:00
Waveform Access open
Sensor model STS2_gen3
Sensor manufacturer Streckeisen
Digitizer model HRD24
Digitizer manufacturer Nanometrics
Channels BHE , BHN , BHZ , HHE , HHN , HHZ
Location code (none)
On date 11-01-1975 00:00:00
Off date 1978-12-06 00:00:00
Waveform Access open
Sensor model Unity gain generic velocity sensor
Sensor manufacturer Generic
Digitizer model UNITY
Digitizer manufacturer generic
Channels SHZ

Site Characterization

channel group
 Empirical Amplification
CH.LLS..HH not available
CH.LLS..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...
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