One of the biggest waves ever to be recorded off Ireland was reported this week, Met Eireann has confirmed.

The massive wave was roughly four times the height of a double decker bus.

The M4 Donegal Buoy (located 83 km off the Donegal coast) measured a record “Significant Wave Height” (SWH) of 15.7m at 11:00 on December 10th .

A “Significant Wave Height” is the term given to the average height of the highest third of the waves over a period. The previous highest SWH was 15.2m recorded earlier this year on January 26th.

The buoy also recorded an individual wave of 21.5m around the same time which is less than the 23.4m record individual wave also recorded earlier this year in January.

The record for the highest Significant Wave Height measured by the buoy network off the Irish coast is still 17.2m recorded at the M6 buoy (389 km west of Galway) on December 9th 2007.

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