Amos ministered during the reigns of King Jeroboam II of Israel (793-753 B.C.) and King Uzziah (Azariah) of Judah (792-740 B.C.), specifically two years before "the earthquake"(1:1). Zechariah also referred to a notable earthquake during the reign of Uzziah (Zech. 14:5). Josephus wrote that an earthquake occurred when Uzziah entered the temple and was struck with leprosy (2 Chron. 26:16-20).1Archaeological excavations at Hazor and Samaria point to evidence of a violent earthquake in Israel about 760 B.C.2So perhaps Amos ministered about 760 B.C. This date may account for the omission of the name of King Jotham who ruled as coregent with Uzziah from 750-740 B.C. Thus Amos was a contemporary of the other eighth-century prophets: Hosea, Jonah, Micah, and Isaiah.
