Bulge at South Sister slows down

Bulge at South Sister slows down: "Bulge at South Sister slows down
Volcano - Scientists say the rate of magma eases, and there are no signs the mountain will erupt in the near future
Thursday, December 15, 2005
RICHARD L. HILL

The expansion of a swelling bulge near South Sister volcano appears to be slowing.

Scientists with the U.S. Geological Survey reported Wednesday that measurements taken during the past year indicate only a slight increase in uplift of a roughly 150-square-mile area three miles west of the mountain. The center of the bulge moved upward by about half its average yearly rate of 1 inch since it began forming in 1997."