Passive seismics
- 7 Lennartz 5s three-component (triaxial) seismometers.
- 1 Lennartz 20s three-component (triaxial) seismometer.
- 14 SARA digitizers (Sara electronic instruments).
Sara SL07 digitizer (Sara electrònic instruments) together with a 1Hz Geòfon Mark L4C (gray) and a 5-second triaxial Lennartz seismometer (blue).
Seismic soroll measurement using the H/V spectral quocient technique.
View of the seismic soroll measurement device using the array technique.