MENU

Station Overview

Overview Location not available
Picture Gallery details...
Network 2A
Station Code GRAE1
Station Description Graechen, GRAE1, VS
Latitude (WGS84) 46.19952
Longitude (WGS84) 7.841925
Station altitude (CH1903) 1590.0
running from 2007-11-21
...until 2009-04-29
Sensor Types Velocimeter
Geological Unit Moraine
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) .77
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
End Date -
Housing Class Urban free field
Housing Description Ground floor of a transformer house (concrete slab)
sensor depth below station
Distance to Building (m) -

Current Instrumentation

No open epochs

Location code (none)
On date 19-11-2008 00:00:00
Off date 2009-04-29 00:00:00
Sensor model LE-3D-5s
Sensor manufacturer Lennartz
Digitizer model
Digitizer manufacturer
Channels EHE , EHN , EHZ
Location code (none)
On date 21-11-2007 00:00:00
Off date 2008-05-15 00:00:00
Sensor model STS2
Sensor manufacturer Streckeisen
Digitizer model
Digitizer manufacturer
Channels EHE , EHN , EHZ , HHE , HHN , HHZ

Site Characterization

H/V pick image:
Authoritative Site Characterization Analysis -
measurements nearby list...