Chin Ho stakes out a Chinese pharmacy. When the suspect departs, Chin radios McGarrett, giving just the license number of the car. McGarrett then immediately broadcasts the license number, vehicle type and color to other officers.
A tidal wave and a tsunami are two different phenomena; a tidal wave is what it says, a phenomenon of high tides, possibly influenced by the effects of the moon and unusual weather, whereas a tsunami is caused by the displacement of water to to subsea geological activity, primarily earthquakes or volcanic activity.