Alaska volcano back on eruption watch - CNN.com
(CNN) -- Researchers have raised the alert status at Mount Redoubt, a volcano in southern Alaska, after another increase in seismic activity.
"Shallow earthquake activity under the volcano has been as high as 26 events per 10-minute period," officials at the Alaska Volcano Observatory said Sunday in a statement announcing that the alert level was raised to "watch" status.
Although no eruption has occurred, the scientists said the increase in seismic activity "likely represents either the upward movement of magma or pressurization of the system."
"It is possible for unrest at the volcano to change rapidly, and seismic activity or other signs of unrest could escalate culminating in an eruption within days to weeks," the statement concluded
(CNN) -- Researchers have raised the alert status at Mount Redoubt, a volcano in southern Alaska, after another increase in seismic activity.
"Shallow earthquake activity under the volcano has been as high as 26 events per 10-minute period," officials at the Alaska Volcano Observatory said Sunday in a statement announcing that the alert level was raised to "watch" status.
Although no eruption has occurred, the scientists said the increase in seismic activity "likely represents either the upward movement of magma or pressurization of the system."
"It is possible for unrest at the volcano to change rapidly, and seismic activity or other signs of unrest could escalate culminating in an eruption within days to weeks," the statement concluded
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