Last week they said "lots of small quakes, just water getting into the hot Lava dome" (this happens every year when we get enough rain) than saturday night "a few deeper quakes" now harmonic tremors (sign of some sort of eruption, gas, steam, or dome bulding(lava))
Doesn't sound to big ........yet, but they did cancel all camping and hiking permits all the way down the toutle river valley to the columbia.
I was hiking on the mountain a few weeks before the may 18 1980 eruption, and still remember watching the ash plume for my house in seattle (90 miles away) that morning
A small 'burp' can throw ash 20,000 feet, or throw house size boulders around the crater.
http://www.ess.washington.edu/SEIS/PNSN ... Hgasex.htm
and the webcam (daylight only)
http://www.ess.washington.edu/SEIS/PNSN ... Hgasex.htmhttp://www.fs.fed.us/gpnf/volcanocams/msh/
Unfortunately pictures don't show how impressive this place is, well worth a couple vacation days if you're in the neighborhood