Yes, it collapsed because the miners dug a huge hole right next to the ocean. What's really crazy is that the Red Sea might have formed in a single event like

Yes, it collapsed because the miners dug a huge hole right next to the ocean. What's really crazy is that the Red Sea might have formed in a single event like this one but thousands of times bigger! I can't find a link now but, uh, https://en.wikipedia.org/wiki/Bab-el-Mandeb#History https://en.wikipedia.org/wiki/Bab-el-Mandeb#History > Paleo-environmental and tectonic events in the Miocene epoch created the Danakil Isthmus, a land bridge forming a broad connection between Yemen and Ethiopia. During the last 100,000 years eustatic sea level fluctuations have led to alternate opening and closing of the straits.