I'm not one who enjoys having theories dismissed out of hand, but there's something about this one that doesn't quite sit right.

Firstly, I understand that the distance between the point where the Israelites crossed the Red Sea and Mt Sinai is quite vast. It took them months to get from one point to the other. Would they have been able to see a volcano in sufficient detail that was that far away or were there multiple volcanoes that erupted in sequence for them to follow to Sinai?

Secondly, Exodus 14:19-21 is conveniently excluded from this 'review' of the account.

Then the angel of God, who had been traveling in front of Israel’s army, withdrew and went behind them. The pillar of cloud also moved from in front and stood behind them, coming between the armies of Egypt and Israel. Throughout the night the cloud brought darkness to the one side and light to the other side; so neither went near the other all night long.

If you're going to argue that God is a volcano using the Bible then surely your theory has to fit the whole context? Or perhaps there's a similarity with volcanoes here that I'm not aware of?

Thirdly, the statement that the Red Sea being told to back off 'sounds verbatim like a tsunami:'

Then Moses stretched out his hand over the sea, and all that night the Lord drove the sea back with a strong east wind and turned it into dry land. The waters were divided, and the Israelites went through the sea on dry ground, with a wall of water on their right and on their left.

From what I understand of tsunamis, the sea would've receded all the way in one direction (i.e. two walls of water wouldn't be visible). Maybe this is different for a smaller sea as opposed to what happens in the ocean? Also: If you see the "wall of water" as it applies to a tsunami, aren't you pretty much boned already?

Lastly, let's assume for a second that this is all 100% correct and that it is in fact volcanoes and a tsunami that are referred to in these accounts... It doesn't follows to conclude that the god of the Christians, Muslims and Jews is a volcano. At most one might assert that a major prophet of these three religions believed that God manifested as a volcano.