A shade west of those coordinates is a traditional location for the mountain. The coordinates place one at/near a delta-shaped placement of stones thought to be an altar of sacrifice constructed under the auspices/by Moses.
But are either of them volcanic in nature? Remember the pillar of fire by night and the pillar of smoke by day. And magma inflation could actually have caused a rise in the land under the waterway which made it possible to rise enough to travel across before the magma chamber emptied and it sank below water level again. A perfectly logical scientific explanation.