Watching Alaska's Mount Redoubt
Written By: Brian Neudorff
Since the end of January, a flurry of activity has been taking place under Alaska's volcano Mount Redoubt. Seismic activity has increased and has continued to be high since January 30th. This is because magma rising toward the surface from beneath a volcano will break rock and this causes earthquakes and other seismic activity. This activity prompted the Alaska Volcanoes Observatory to warn an eruption could be imminent.
Magma moving up the mountain warmed rock and created a fumarole, an opening in the earth that emits gases and steam. The activity has melted holes in Drift Glacier, which partly covers the mountain on its north side.
Over the weekend, the Alaska Volcanoes Observatory says a steam plume was again spotted Saturday coming from above the 7,000-foot level near a dome that formed after the last Redoubt eruption in 1990.
Elevated seismic activity also continues.
Other Mt. Redoubt Links:
Alaska Volcano Observatory
AVO Redoubt Page
USGS Seismic Monitor
AVO Total Seismicity
AVO Ash Dispersal Model
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