The Redoubt volcano along the Cook inlet in Alaska is showing seismic activity according to the Alaska Volcanic Observatory (AVO). Seismic activity may be a precursor to eruption. Dedicated seismic recorders show frequent bursts of activity on the volcano. The USGS has a website with advice and information aimed at helping people cope with an ashfall.
In the past, the prevailing winds have carried the ashfall in an easterly direction over and past Anchorage. According to AVO, Redoubt is a stratovolcano located several hundred km west of Anchorage. It has reportedly erupted explosively six times since 1778, with the most recent being in 1989-90.
Note to Wal-Mart: You may want to stock up the anchorage stores with extra brooms and shopvacs.
Lamentations on Chemistry 
I recall reading about the theory that if a strategically placed volcano blew, then it could set off a chain reaction, initiating dozens of other volcanoes to ignite.
Haven’t heard about that end of the world scenario in a while. Too much yammering about the destruction of the economy. As if that’s a real apocalypse!
At the AVO site, you can see the seismic traces from Mt Dutton. It was extremely active as well.
Downwind from a volcano sells pantihose like crazy – the only thing that saves your car’s air filter, then your engine. An enterprising sod would bulk package the ash and sell it as garden soil amendment (with or without added virgins). It would be a terrible thing if the implacable monster of Global Cooling
were exponentiated by a decade of opacified stratosphere from volcanic injection. Test of faith. Bring it on!
Wow. Pantyhose filtration. That’s a good idea. You could use the garter to fasten it to the air intake.