It appears Mr. Snodgrass has come upon the (almost) perfect vision. If a 9.0+ quake happens here before 12/31/02, his vision is right. If we don't have a 9.0+ quake, that means the three angels interceded on our behalf and his vision is right. In other words: Heads I win, tails you lose.
Alas, there's one tiny mistake he made in his deciphering of his vision: 9.0+ quakes very rarely occur. Even quakes above ~8.2 or so rarely happen more than once a year; 9.0+ ones only happen (very roughly) once every 50 years or so somewhere around the world. And there have been only two 9.0 quakes in recorded American history, and both of those were in Alaska. The biggest quake evers to hit the US were in New Madrid, and those were in 1811 and 1812. So if some 9.0+ quake does hit somewhere in the next four months, then he's one heck of a prophet. And if one hits North or South America before 12/31, he's probably got Jesus on speed-dial.