There is no tsunami threat to New Zealand following a massive earthquake recorded in the Pacific Ocean, Civil Defence says.
The 8.2-magnitude quake occurred off the south-west coast of Alaska, more than 11,000km away.
New Zealand's National Emergency Management Agency says it's assessed information with science advisors and there is no threat for New Zealand.
"Based on current information, the initial assessment is that the earthquake is unlikely to have caused a tsunami that will affect New Zealand," they tweeted.
"New Zealand coastal areas may experience strong and unusual currents and unpredictable surges at the shore tomorrow. Be cautious if you are at the beach or on the water."
Civil Defence earlier said an advisory of the potential tsunami was issued following a rapid assessment of preliminary information on the earthquake.
"The situation may change as more information becomes available. We will provide a further update when we have completed a further assessment."
The United States Geological Survey (USGS) says the earthquake struck at a depth of 46.7km, just 91km away from the small town of Perryville, Alaska.
The Pacific Tsunami Warning Centre says "hazardous waves from this earthquake are possible within the next three hour along some coasts".
"The situation is still under investigation. This threat evaluation will be updated as soon as further information becomes available."
The agency is urging people to be "ready for more earthquakes", including the possibility of another large earthquake.
It forecasts that there's a 4 percent chance of one or more aftershocks larger than magnitude 8.2, with as many as 33,000 magnitude-3.0 or higher aftershocks.
"Magnitude 3 and above are large enough to be felt near the epicenter," the USGS said. "The number of aftershocks will drop off over time, but a large aftershock can increase the numbers again, temporarily.".