The city of Portland Oregon and the offices of Waist High went on a Mt. St. Helens Volcano Alert Wednesday prompting scientists to warn that a small or moderate eruption could happen in the next few days.
"Scientists said they believe the seismic activity is being caused by pressure from a reservoir of molten rock a little more than a mile below the crater. That magma apparently rose from a depth of about six miles in 1998, but never reached the surface." (katu.com)
See below post for Waist High's city of origin natural disaster alert.
Photo: USGS via katu.com