If you were to stop the entire crust of the earth from rotating instantaneously then the period of the earth's rotation would drop by 11.3 minutes.
Moving a mass of water which is more than a billion times smaller than that temporarily a few hundred kilometers, and moving the local underlying plates permanently a few centimetres will have virtually no effect on either the earth's period of rotation or its rotational axis.
Moving a mass of water which is more than a billion times smaller than that temporarily a few hundred kilometers, and moving the local underlying plates permanently a few centimetres will have virtually no effect on either the earth's period of rotation or its rotational axis.
Comment