It seems clear from the Bible verses of the meeting with god at Mount Sinai that Yahweh was a volcano god. I have seen this written many times and can't deny it myself. I was in denial at first but what other kind of god was said to live on a fiery hill and throw out brimstone, the latter being volcanic sulphur? If he would be a volcano god in any other religion going by the descriptions of him then it would be wrong of us to believe he's anything more to us.