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You know the drill for preparations -
In the 24 hour period from 10 am on Tuesday, 13 April to Wednesday, 14 April six "felt" earthquakes with magnitudes between 4.0 and 4.5 occurred just off the coast of the Tolaga Bay area along with a number of smaller earthquakes. Earthquakes of this size in this area are not uncommon but it is unusual to have a large number of them in a short time span. These earthquakes have been occurring in the same area as a region of slow-slip which has been taking place in several episodes over the last couple of months. During slow-slip events an area on the interface between the Pacific and Australian tectonic plates that is normally locked is temporarily released, allowing the overlying crust to move back eastwards at rates of a few millimetres per day. It is likely that the earthquakes and the slow-slip event are related but exactly how is not yet clear.