A knots (118km/h) or above. Equivalent to a cyclone in the Indian Ocean and Indonesia/Australia.
To swirl like a hurricane.
A very large and destructive wave, generally caused by a tremendous disturbance in the ocean, such as an undersea earthquake or volcanic eruption. Tsunami are usually a series of waves, or wave train.
A knots (118km/h) or above. Equivalent to a cyclone in the Indian Ocean and Indonesia/Australia.
To swirl like a hurricane.
A very large and destructive wave, generally caused by a tremendous disturbance in the ocean, such as an undersea earthquake or volcanic eruption. Tsunami are usually a series of waves, or wave train.