they all have the same language as the visitation of the Lord on the people on the mountain in Exodus,
If you are looking for the commonality of expressions used in both prophecy and extraordinary events in the Bible, you need to expand much further than those.
I think that's part of the difficulty and why there are so many very different eschatologies out there, it's the tendency for every great earthquake to be the same earthquake, even though they are described to have different effects, or to have different properties.
The whole moon debate for instance, the properties are different, yet you maintain they are the same thing.
Or another example, the sixth seal earthquake. There is an earthquake at the end of the 70th week, and many people declare these are the same. This is another example where I recommend paying attention to the details. Every detail given is there for a reason.
Revelation 6:12-14 KJV
12) And I beheld when he had opened the sixth seal, and, lo, there was
a great earthquake; and the sun became black as sackcloth of hair, and the moon became as blood;
13) And the stars of heaven fell unto the earth, even as a fig tree casteth her untimely figs, when she is shaken of a mighty wind.
14) And the heaven departed as a scroll when it is rolled together; and every mountain and island were moved out of their places.
Revelation 16:17-20 KJV
17) And the seventh angel poured out his vial into the air; and there came a great voice out of the temple of heaven, from the throne, saying, It is done.
18) And there were voices, and thunders, and lightnings; and there was
a great earthquake, such as was not since men were upon the earth, so mighty an earthquake, and so great.
19) And the great city was divided into three parts, and the cities of the nations fell: and great Babylon came in remembrance before God, to give unto her the cup of the wine of the fierceness of his wrath.
20) And every island fled away, and the mountains were not found.
This second one is the greatest ever earthquake, but that by itself doesn't mean it's not the same as the first. However, in the sixth seal quake, every island and mountain were "moved from their locations", while in the 7th bowl earthquake, every island fled, and the mountains were not found.
Changing your location, and being removed completely, these let us know. And the more closely you look at the statements and the surrounding context, the more clear this is.
If you were to make these the same earthquake, as some do, more conflicts arise.
Much love!