The highest-ever wave of 19 metres (62.3ft) has been recorded in the North Atlantic.
An automated buoy recorded the wave in the ocean between Iceland and the United Kingdom, the World Meteorological Organization said.
It was created in the aftermath of a very strong cold front with 43.8 knot (50.4mph) winds on 4 February 2013.
The WMO, which released the data, said the previous record was 18.275 metres (59.96ft) in December 2007.
That wave was also in the North Atlantic.
Image: The wave was captured by a buoy
The buoy is part of the UK Met Office's network of Marine Automatic Weather Stations.
The buoys complement ship-based measurements and satellite observations, which monitor the oceans and forecast meteorological hazards on the high seas.
Peaks and troughs
Giant waves can be created in the north Atlantic, which stretches from the Grand Banks plateau off the coast of Canada to the area south of Iceland and west of the UK.
In winter, wind circulation and pressure systems cause extratropical storms, sometimes known as bombs, the WMO said.
The height of a wave is measured from the crest of one to the trough of the next.
Source: BBC NEWS