MENU

Station Overview

image
legend Overview at SWIM
Overview Location not available
Picture Gallery details...
Network CH
Station Code SWIM
Station Description Wildhaus, Mehrzweckhalle, SG
Latitude (WGS84) 47.20475
Longitude (WGS84) 9.35224
Station altitude (CH1903) 1098.0
running from 2019-10-17
...until now
Waveform Access open
Sensor Types Accelerometer
Geological Unit Biogenic and clastic sedimentary rocks, sometimes with evaporites (mixed carbonates)
Site Morphology Class T1
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 Saddle-back
Ground type EC8 B
Ground type SIA B
Basin Information not in a sedimentary basin with possible 2D/3D effects
Reference Hobiger Manuel, Fäh D., "SITE CHARACTERIZATION REPORT SWIM: Wildhaus (SG) - Mehrzweckhalle", Swiss Seismological Service, ETH Zürich, 2021
Resonance Frequency (Hz) 5.63
Uncertainty Factor -
Vs 30 (m/s) 674
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 17-10-2019
End Date -
Housing Class Urban free field
Housing Description SED big pot, concrete vault, sensor bolted to the Foundation
sensor depth below station 1.0 m
Distance to Building (m) 13

Current Instrumentation

Location code (none)
On date 17-10-2019 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

Site Characterization

channel group
 Empirical Amplification
CH.SWIM..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...
measurements nearby list...