when was the last time mt st helens showed increased activity
January 16 , 2008
-1
Section::::Geologic history.:Modern eruptive period.:2004 to 2008 activity.

Mount St. Helens
36649
11731529611014085563
NONE
Section::::Geologic history.:Modern eruptive period.:2004 to 2008 activity.

Mount St. Helens
36649