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Station Overview

Overview Location not available
Picture Gallery details...
Network CH
Station Code MMK
Station Description Mattmark, VS
Latitude (WGS84) 46.0507
Longitude (WGS84) 7.96409
Station altitude (CH1903) 2200.0
running from 1981-01-07
...until now
Waveform Access open
Sensor Types Accelerometer Velocimeter
Geological Unit Alpidisch metamorphic schist complex
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) -
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 AH
Opening Date 26-08-1982
End Date 2002-01-02
Housing Class Tunnel
Housing Description Sensors in tunnel, access tunnel, 15m from edge of dam crest, 10m directly below free surface, 20m from nearest entrance. Sensors placed on 0.2m high concrete pedestal on rock.
sensor depth below station -0.2 m
Distance to Building (m) -
Location Code FH
Opening Date 07-01-1981
End Date 1992-09-30
Housing Class Tunnel
Housing Description Sensors in tunnel, access tunnel, 15m from edge of dam crest, 10m directly below free surface, 20m from nearest entrance. Sensors placed on 0.2m high concrete pedestal on rock.
sensor depth below station -0.2 m
Distance to Building (m) -
Location Code (none)
Opening Date 19-01-1999
End Date -
Housing Class Tunnel
Housing Description Sensors in tunnel, access tunnel, 15m from edge of dam crest, 10m directly below free surface, 20m from nearest entrance. Sensors placed on 0.2m high concrete pedestal on rock.
sensor depth below station -0.2 m
Distance to Building (m) -

Current Instrumentation

Location code (none)
On date 26-06-2023 12:15:00
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 26-06-2023 12:15:00
Off date -
Sensor model STS2.5
Sensor manufacturer Streckeisen
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 AH
On date 30-09-1992 00:00:00
Off date 2002-01-02 14:00:00
Waveform Access open
Sensor model Mk IIIA
Sensor manufacturer Willmore
Digitizer model AHP
Digitizer manufacturer HP
Channels SHE , SHN , SHZ
Location code AH
On date 26-08-1982 00:00:00
Off date 1992-09-30 00:00:00
Waveform Access open
Sensor model Mk IIIA
Sensor manufacturer Willmore
Digitizer model AHP
Digitizer manufacturer HP
Channels SHE , SHN , SHZ
Location code FH
On date 26-08-1982 00:00:00
Off date 1992-09-30 00:00:00
Waveform Access open
Sensor model Mk IIIA
Sensor manufacturer Willmore
Digitizer model FHP
Digitizer manufacturer HP
Channels SHE , SHN , SHZ
Location code FH
On date 07-01-1981 00:00:00
Off date 1982-08-26 00:00:00
Waveform Access open
Sensor model Mk IIIA
Sensor manufacturer Willmore
Digitizer model FHP
Digitizer manufacturer HP
Channels SHE , SHN , SHZ
Location code (none)
On date 20-09-2018 13:00:00
Off date 2023-06-26 12:15:00
Waveform Access open
Sensor model EpiSensor ES-T
Sensor manufacturer Kinemetrics
Digitizer model Centaur
Digitizer manufacturer Nanometrics
Channels HGE , HGN , HGZ
Location code (none)
On date 20-09-2018 13:00:00
Off date 2023-06-26 12:15:00
Waveform Access open
Sensor model STS2.5
Sensor manufacturer Streckeisen
Digitizer model Centaur
Digitizer manufacturer Nanometrics
Channels BHE , BHN , BHZ , HHE , HHN , HHZ
Location code (none)
On date 02-07-2018 13:00:00
Off date 2018-09-20 13:00:00
Waveform Access open
Sensor model EpiSensor ES-T
Sensor manufacturer Kinemetrics
Digitizer model Q330HRS
Digitizer manufacturer Quanterra
Channels HGE , HGN , HGZ
Location code (none)
On date 02-07-2018 13:00:00
Off date 2018-09-20 13:00:00
Waveform Access open
Sensor model STS2.5
Sensor manufacturer Streckeisen
Digitizer model Q330HRS
Digitizer manufacturer Quanterra
Channels BHE , BHN , BHZ , HHE , HHN , HHZ
Location code (none)
On date 12-10-2017 16:00:00
Off date 2018-07-02 13:00:00
Waveform Access open
Sensor model EpiSensor ES-T
Sensor manufacturer Kinemetrics
Digitizer model Q330HRS
Digitizer manufacturer Quanterra
Channels HGE , HGN , HGZ
Location code (none)
On date 12-10-2017 16:00:00
Off date 2018-07-02 13:00:00
Waveform Access open
Sensor model STS2.5
Sensor manufacturer Streckeisen
Digitizer model Q330HRS
Digitizer manufacturer Quanterra
Channels BHE , BHN , BHZ , HHE , HHN , HHZ
Location code (none)
On date 11-11-2000 00:00:00
Off date 2017-10-12 16:00:00
Waveform Access open
Sensor model EpiSensor ES-T
Sensor manufacturer Kinemetrics
Digitizer model HRD24
Digitizer manufacturer Nanometrics
Channels HGE , HGN , HGZ
Location code (none)
On date 14-07-1999 00:00:00
Off date 2017-10-12 16:00:00
Waveform Access open
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 19-01-1999 00:00:00
Off date 1999-07-14 00:00:00
Waveform Access open
Sensor model STS2_gen3
Sensor manufacturer Streckeisen
Digitizer model HRD24
Digitizer manufacturer Nanometrics
Channels HHE , HHN , HHZ

Site Characterization

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