I believe the answer you are looking for is the "Neolithic Period".
Answer:
20-30 feet (6-9 metre) in Japan
In the Middle East, you can expect mainly earthquakes to happen. Earthquakes also result in other natural disasters such as mudslides and floods. To prepare for earthquakes, you can pratice what to do during an actual earthquake such as if you're a farmer and outside, you would want to get to an open area to avoid powerlines, trees, or anything that could come down. To also prepare for or prevent a mudslide, plant and water diversion are good methods to stay safe. You can also make sure you plant appropriately on hills. For floods, you can always ask others about relocation routes and centres. On top of that, if possible, you can prepare a household flood plan.
