Earthshaker (アースシェイカー a-susheikā) is a Japanese heavy metal band that was formed in 1978 in Osaka. Their earlier music was very similar in style to countrymen Loudness and Anthem, but the band steered toward a poppier sound on later albums and dropped from worldwide view, preferring to record and tour in their home country. After a successful run, they broke up in 1994, but returned five years later and are still going strong today.