The song was written by The Pen Up Dolls (Lindsay "Lindz" Fields, Cristo Jeanette, and Nia Myricks) and produced by Young Yonny and @goodguydez.

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.

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.

[1] In an interview with Billboard.com's The Juice, Harrison explained how the collaboration came about with Trina: Trina and I [initially] worked together for her mixtape, Diamonds Are Forever, and collaborated on a song for her album called 'Can I', and we did a trade-off situation, being that we're both independent," Mýa says.