Sequences of small earthquakes typically tell that a volcano ... another eruption. “High rates of seismicity, interpreted as ...

Recent increased seismic activity at Mt. Adams has brought state, tribal, and federal leaders together to reassess their ...

The sediment retention dam in Toutle has become less and less effective as it fills, switching from catching about 80% of ...

This striking satellite photo shows the unusual shape of Spirit Lake, which was transformed into a giant anatomically inaccurate heart by the explosive eruption of Mount St. Helens in 1980.

WA leaders are reassessing their plans for the possibility of an eruption at Mount Adams or Mount St. Helens. Dozens of ... who reports to who," said Volcano Program Manager Brian Terbush at ...