Mount St. Helens shoots steam into air

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Mount St. Helens shoots steam into air

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VANCOUVER, Wash. - Mount St. Helens shot a steam and ash plume at least 16,000 feet into the air Monday after a large rockfall from the lava dome in the volcano's crater, scientists said.

Pilots reported the plume rose between 16,000 and 20,000 feet in the air, scientists at the Cascades Volcano Observatory said.

The rockfall coincided with a magnitude 3.1 earthquake shortly after 9 a.m. Monday at the mountain, scientists said. Such events are expected during growth of the lava dome, they said.

"There is no evidence of an explosion associated with this event," the observatory said in a statement.

Clouds obscured the crater at the time.

"We don't know how much steam and how much ash," Cynthia Gardner, scientist in charge at the observatory, told The Columbian. "These are very short-lived events."

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Mount St. Helen shoots steam and ash 16,000-20,000 feet into the air after a 3.1 quake.
By YCON: posted on 31-5-2006








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