While supermoons don’t normally impact much, they may bring higher tides than usual.
The term supermoon came from astrologer Richard Nolle over 30 years ago, and is only now coming into popular usage, according to EarthSky. Nolle said a supermoon is “a new or full moon which occurs with the moon at or near (within 90% of) its closest approach to Earth in a given orbit.”
This usually means an average of four to six supermoons per year.
The other supermoons in 2014 will be on July 12, on August 10, and on September 9. The moon will be the closest to the Earth on August 10.
Before supermoons were called supermoons, they were referred to perigee full moon, or perigee new moon. Perigee means “the point in the orbit of the moon or a satellite at which it is nearest to the earth,” being derived from the Greek word perigeion, which meant ”close around the Earth.”