Emergency authorities say a tsunami threat to New Zealand from the giant quake off Russia's Kamchatka peninsula is likely to remain in force overnight for the east coast of both the North and South Islands and the Chatham Islands.
NEMA, in its latest update, said that the remainder of the west coast of the South Island and Cook Strait that remain under a beach and marine tsunami threat are assessed as only just reaching the threshold.
A further update will be provided at around 8am on Friday.
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