I visited Ephesus some years ago. When Jesus was on the Cross he commissioned John to take care of His mother. John did. But John was an evangelist and traveled.
When John traveled to modern day Turkey, it was to spread the Word of God. He went to the PORT city of Ephesus, with Mary. I saw the stone house where Mary lived while they were in Ephesus.
There was an inscription there that some folks in the Midwest (USA) were the ones taking care of the site, in honor of Jesus' mother.
Erosion and silting don’t take millions of years.Neither do earthquake induced changes.Here on my modest farm there have been several rather dramatic alterations:one night during a heavy thunderstorm a large section of road and all its bordering 70 foot tall trees disappeared with a thundering crash into the raging waters of a creek that one can normally wade ;another time the flat shelf of a hillside slumped into “eyebrows” following an earth tremor we didn’t even feel;a huge bank of rocks and hundreds of tons of sand appears after another storm,and the watercourse moves dozens of feet to one side, taking away significant portion of a field;sinkholes open up .And this is a stable area!?
It is no wonder ancient cities ,homes, and farms are still discovered in surprising current locations.