When Joshua and the Jews needed to cross the Jordan River during springtime flood season, the river stopped flowing upstream “at a town called Adam,” (Joshua 3:16). Same thing happened in 1927. An earthquake dropped the 150-foot (45-meter) cliffs near the ruins of Adam into the river, blocking it for 21 hours. 100 Tough Questions about God and the Bible, 136. Video: When the Jordan River Stopped.