"Earthquake" is an R&B/hip hop song by American recording artist Mýa. It served as Harrison's first U.S. digital single from her sixth studio album K.I.S.S. (Keep It Sexy & Simple) (2011) and featured Miami rapper Trina. The song was originally due to be featured on the Japanese version of K.I.S.S., however the song was pulled out of respect to the victims affected by the earthquake in Japan. The song was written by The Pen Up Dolls (Lindsay "Lindz" Fields, Cristo Jeanette, and Nia Myricks) and produced by Young Yonny and @goodguydez.

"Earthquake" was released to iTunes on December 6, 2011. It is Harrison's first single to be released in the United States four years after her studio album Liberation (2007).

Before being released in the United States, "Earthquake" was originally featured on the Japanese version of K.I.S.S. but removed of respect after the devastating earthquake. "When considering to release it on the U.S. version this fall, again it was a decision I went back and forth on, but ultimately, I think people will understand my decision to release the song, because at the end of the day I think the world is ready to have some fun, and take negative situations and reinvent them into something positive, that we can own, learn from and that bring us together," Mýa told AOL Music of the timing of the song's release. "Sometimes we just need to let loose, let our hair down, come together and shake it like an Earthquake!" the singer added.

Mýa continued, "'Earthquake' is just a really fun song that crowds go wild for when I perform it live and tested it in the clubs.

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