Multi-channel Analysis of Surface Waves

Multi-channel Analysis of Surface Waves (MASW) is an investigation technique that uses generated energy (such as a sledgehammer blow) and measures how it travels through the ground.

Geophysical Services

Our team can combine geophysics with intrusive methods in order to provide our clients with the optimum amount of information in a cost-effective package.

Click below to learn more about the science behind it all.

General Overview

Seismic Refraction Tomography (SRT)

Ground Penetrating Radar (GPR)

Concrete Scanning

Electrical Resistivity Tomography (ERT)


MASW is an investigation technique that measures how generated energy travels through the ground.

A series of sensors, called geophones, are placed in a line to take measurements that will then provide the shear-wave (Vs) profile in either 1D (depth) or 2D (depth and surface distance)

People possibly relate ‘energy through ground’ situations mostly with earthquakes, but using MASW can be useful in providing a range of solutions:

  • Aid in liquefaction potential analysis
  • Finding the lateral and vertical variations in the subsurface
  • Depth to groundwater
  • Depth of overburden/depth to bedrock
  • Vs30 (Shear-wave velocity over the first 30 m depth)

Read about our previous MASW projects:

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