Mt. Fitzherbert

MOUNT SAINT HELENS, Wash. - The new lava dome inside the crater of Mount Saint Helens 50 miles north of Portland has grown a protrusion the size of a 30-story building that glows red at night.

Scientists from the U.S. Geological Survey released dramatic new video of that growth. Night video shows the hot lava dome glowing red. Scientists say it is the result of rising magma, or molten lava.

A relatively large earthquake rumbled near the summit of Mount Rainier on Sunday, but scientists say it almost certainly had nothing to do with Mount St. Helens' volcanic turmoil.

"This was one of the larger earthquakes we've seen on Rainier in the past decade," said Bill Steele, coordinator at the University of Washington seismology laboratory.

Scientists recorded a magnitude 3.2 quake at about 11:30 a.m. Sunday that was preceded by six smaller tremors and followed by nine small quakes, Steele said.