A supermoon is a particularly close full or new moon, appearing somewhat brighter and bigger. A total lunar eclipse — or blood moon for its reddish tinge — has the moon completely bathed in Earth's shadow.
Peter Felhofer, president of the Northland Astronomical Society, said the moon would have been a spectacular sight for those who did see it.
He said in New Zealand the moon was technically not a blue moon because it happened about 2.30am on February 1, but for the rest of the world it is.
''It's particularly exciting that the lunar eclipse is happening on a super moon and the moon is expected to be anything from a deep red to purple, so it should be quite a sight for those who do see it."