Station Overview

Overview Location not available
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Network CH
Station Code BERNI
Station Description Berninapass, GR
Latitude (WGS84) 46.41363
Longitude (WGS84) 10.02309
Station altitude (CH1903) 2311.0
running from 1998-04-14
...until now
Sensor Types Accelerometer Velocimeter
Geological Unit Meta-granitoid
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
Ground type SIA
Basin Information not in a sedimentary basin with possible 2D/3D effects
Reference
Resonance Frequency (Hz) 14.45
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 14-04-1998
End Date -
Housing Class Underground shelter
Housing Description Sensor in underground concrete structure, 20m directly below free surface, 15m from nearest entrance. Sensor placed on concrete floor on rock.
sensor depth below station 7.0 m
Distance to Building (m) -

Current Instrumentation

Location code (none)
On date 31-05-2017 18:00:00
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 31-05-2017 18:00:00
Off date -
Sensor model Trillium 240s_g2
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
Location code (none)
On date 25-08-1999 00:00:00
Off date 2017-05-31 18:00:00
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 14-04-1998 00:00:00
Off date 1999-08-25 00:00:00
Sensor model STS2_gen3
Sensor manufacturer Streckeisen
Digitizer model HRD24
Digitizer manufacturer Nanometrics
Channels BHE , BHN , BHZ , HHE , HHN , HHZ

Site Characterization

channel group CH.BERNI..HG
Empirical Amplification not available
channel group CH.BERNI..HH
Empirical Amplification 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...