Station Overview

legend Overview at SLOP
Overview Location
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Network CH
Station Code SLOP
Station Description Locarno, Pompieri, TI
Latitude (WGS84) 46.16384
Longitude (WGS84) 8.79055
Station altitude (CH1903) 200.0
running from 2013-06-14
...until now
Waveform Access open
Sensor Types Accelerometer
Geological Unit Alluvial fan
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 Edge of Lake Maggiore alluvial plain (alluvial fan)
Ground type EC8 C
Ground type SIA C
Basin Information Lake Maggiore basin, interface at fundamental frequency at 450 m depth
Reference Michel Clotaire, Roten D., Cauzzi C., Poggi V., Burjanek J., Fäh D., "Locarno-Pompieri (SLOP) Site characterization report", Swiss Seismological Service, ETH Zürich, 2013
Resonance Frequency (Hz) .67
Uncertainty Factor -
Vs 30 (m/s) 315
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 14-06-2013
End Date -
Housing Class Free field
Housing Description SED large vault
sensor depth below station 1.0 m
Distance to Building (m) -

Current Instrumentation

Location code (none)
On date 14-06-2013 00:00:00
Off date -
Sensor model EpiSensor ES-T
Sensor manufacturer Kinemetrics
Digitizer model Taurus
Digitizer manufacturer Nanometrics
Channels HGE , HGN , HGZ
Stream Noise (last week) HGE , HGN , HGZ

Site Characterization

channel group
Empirical Amplification
CH.SLOP..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.

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Authoritative Site Characterization Analysis details...
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