This is the approximate location of the Burckle Crater, the event that almost certainly caused the Biblical Flood and changed the entire Indian Ocean coastlines.
One of the studies confirming it below in this Thread.
Thread with 35 Slides
Mega Tsunami of the World Oceans: Chevron Dune Formation, Micro-Ejecta,and Rapid Climate Change as the Evidence of Recent Oceanic Bolide Impacts