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Station Overview

Overview Location not available
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Network CH
Station Code LKBD
Station Description Leukerbad, VS
Latitude (WGS84) 46.38703
Longitude (WGS84) 7.62714
Station altitude (CH1903) 1550.0
running from 1994-12-26
...until 2017-09-01
Waveform Access open
Sensor Types Velocimeter
Geological Unit Limestone and schist of Bajocian-Bathonian age (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 cliff
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 (none)
Opening Date 26-12-1994
End Date 2017-09-01
Housing Class Free field
Housing Description Sensor placed in small 0.4m deep niche on thin concrete foundation, nieche carved out of rock. Alpine cliff.
sensor depth below station 0.4 m
Distance to Building (m) -

Current Instrumentation

No open epochs

Location code (none)
On date 03-06-2002 09:00:00
Off date 2017-09-01 09:30:00
Waveform Access open
Sensor model LE-3D-5s
Sensor manufacturer Lennartz
Digitizer model HRD24
Digitizer manufacturer Nanometrics
Channels EHE , EHN , EHZ
Location code (none)
On date 28-06-1999 00:00:00
Off date 2002-06-03 09:00:00
Waveform Access open
Sensor model STS2
Sensor manufacturer Streckeisen
Digitizer model HRD24
Digitizer manufacturer Nanometrics
Channels BHE , BHN , BHZ , HHE , HHN , HHZ
Location code (none)
On date 09-07-1996 00:00:00
Off date 1999-06-26 00:00:00
Waveform Access open
Sensor model Unity gain generic velocity sensor
Sensor manufacturer Generic
Digitizer model UNITY
Digitizer manufacturer generic
Channels SHE , SHN , SHZ
Location code (none)
On date 26-12-1994 00:00:00
Off date 1996-07-09 00:00:00
Waveform Access open
Sensor model Unity gain generic velocity sensor
Sensor manufacturer Generic
Digitizer model UNITY
Digitizer manufacturer generic
Channels SHE , SHN , SHZ

Site Characterization

channel group
 Empirical Amplification
CH.LKBD..HH not available
CH.LKBD..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:
Authoritative Site Characterization Analysis -
measurements nearby list...