CVO dismantles Mount St. Helens’ VALT seismic station after 18 years in service.

While VALT will be missed for sentimental reasons, plans are underway to install a replacement on the crater floor away from the reach of Crater Glacier. No gaps in monitoring are anticipated.

While VALT will be missed for sentimental reasons, plans are underway to install a replacement on the crater floor away from the reach of Crater Glacier. No gaps in monitoring are anticipated. Read More