鯰 （なまず） catfish (esp. the Amur catfish, Silurus asotus), earthquake

鯰絵 （なまずえ） woodblock print depicting a giant catfish (popular in Edo after the 1855 earthquake)

大ナマズ （だいナマズ） giant catfish (mythological being thought to cause earthquakes)

琵琶湖大鯰 （びわこおおなまず） Lake Biwa catfish (Silurus biwaensis)