Earthquake is a character in the Samurai Shodown series. He was introduced in the first Samurai Shodown and was dropped from the character lineup after Samurai Shodown II. He continues to make cameo appearances in some stages and in characters endings.

He is a Texan who had trained under the same master as the ex-sailor Galford, Ayame, but quit early due to his bad ties with Galford. Thanks to some of this training, however, despite his enormous body – huge in both height and girth – Earthquake became deceptively fast and tricky. His ninjutsu combined with his size makes him a formidable warrior. He uses this to his advantage and becomes a bandit, somehow being the leader to his own bandit gang. When Amakusa starts creating havoc, he decides to steal all the world's treasure. A year later, Mizuki telepathically hires him, telling him that if he killed those she told him to, she would reward him with gold. After the defeat of Mizuki, Earthquake and his henchmen go to the Makai, enchanted by the promise of greater treasure. After they enter, the entrance is sealed and they are never heard of again.

Earthquake respects no one except for himself and his minions. He uses his greed to drive him, wanting to bask in material wealth and riches that he feels he deserves. Like most bandits, he's rude and shameless to others. He was also portrayed as a lovable fool in the series' RPG, as he'll insult the heroes after his defeat yet humorously get lost while escaping in the following area. His immense weight was gained partially due to his disappointment with his courting skills as he's rejected by many ladies.

He is not on good terms with Galford and he is equally antagonistic in return (even when he claims to have forgotten about him).