Hello how may I help you? Hi! How may I help? Is the mariana trench the deepest spot on earth? Yes. It is! Wow, that's amazing! How deep is it? It is around 11,000 meters deep. For comparison, how deep is the deepest human made construction? A man made Borehole is around 12,200 meters deep. Oh, so borehole is actually the deepest spot on earth. ;) Yes it is! And for one last comparison, how deep is it to the center of the earth? It is around 50,000 meters deep!