The earthquake at Adam

Joshua
In the past when I've read the story of the Israelites crossing the Jordan, similar to that of them crossing the Red Sea, I've always thought that God would sort of have come down with his hand and stuck it in the water and made a dry path.  But I read a footnote in my bible today that said that the town of Adam, mentioned in Joshua 3:16, often experienced earthquakes.  The latest one, in 1927, ended with a large part of the embankment shearing off and falling in the river, effectively creating a dam and stopping the flow of water down the Jordan for approximately 21 hours.  So there's actually a scientific reason for the dry path that the Israelites crossed.  Still, what expert timing on behalf of God so that the Israelite priests were at the river the second the river stopped flowing.  Amazing!