I have been wanting to ask, but with one kid (out of four) going off to college and another one having had two surgeries in August, I've been a bit busy. I now live outside of Denver. I think that something is going on, not in California, but maybe Yellowstone or the Rockies and this is why: The weather has been normal, but we noticed after the 5.6 in Montana a month ago, that things in our 8 year old house shifted (very well built house). Then about 10 days or two weeks after the Montana quake, there was the New Mexico/Colorado (5.1 or 5.2 - it's lost in the blur) border stuff. We're about 3 hours north, but after that we smelled a lot of sulphur in the creeks that flow up from the south (Piney Creek and Cherry Creek - major waterways - we live right on Piney Creek). Several doors in our house got to the point that they wouldn't close at all while others got stuck. I noticed earlier this week that the doors have all returned to normal and the sulphur smell is gone. Slow quake? Any ideas? Thanks! Beth