abstract:The surface wave magnitude (M_s) scale is one of the magnitude scales used in seismology to describe the size of an earthquake. It is based on measurements in Rayleigh surface waves that travel primarily along the uppermost layers of the earth.
The underwateracousticsignalcancausesurfacewave motionatthe water-airinterfaceand hence modulate the magnitude of the laser beam falling on the watersurface.