Seismic Monitoring - Soil and Groundwater Information

Articles & Whitepapers

Determination of the damping ratio by multi-channel spectral analysis of seismic downhole data

Soil dynamic parameters such as the damping ratio are of major interest in earthquake engineering. We’ve currently published a publication which comes back to a relationship between attenuation and velocity dispersion of body waves which replaces the measurement of the amplitude characteristics of seismic signals by a frequency dependent velocity function. The implementation of this method ...

Are This Summer’s Earthquakes Cause for Concern?

In July of this year, North America’s west coast experienced a string of earthquakes, some rating as high as 6.7 in magnitude. This recent seismic activity has left many people worried and ...

Seismic Equipment for P-Wave Tomography up to 1000 m

We developed a prototype of a new P-wave sparker borehole source and digital hydrophone string. SBS1000 Magnum | P-Wave Sparker Borehole Source The borehole source SBS1000 Magnum is designed for P-wave tomography between boreholes up to 1000 m ...

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Surface Vibrator Source

The Vibrator Source ElViS III is used to generate P- or S-wave sweep signals. It can be used for shallow seismic surveys. The source consists of a moving mass driven by a cascaded linear motor. The source is fully cased. An adjustable pneumatic suspension ensures a maximum release of seismic energy under different surface conditions. The source is most suitable for reflection seismic surveys on ...