[Darksheare]

I was pretty young when that mountain went up last time.
I seem to recall a bunch of tiny quakes happening just like mentioned.
All small 1 or 2 on the richter quakes with a few spiking to 5 or so.
Will have to look it up, but that mountain is unpredictable.

[rdl6989]

I was 9 at the time(telling my age) and I remember the "rumbling" started in January 1980 and built up to the May 18, 1980 eruption. There were some rumblings afterward for awhile.

[Fishman1]

I was 16 and lived 60 miles N of Mt. St. Helens in 1980. It was an awesome time here.

The Mountains rumblings did start with Micro Quakes but also the mountain began bulging up to 2 feet a day.