A swarm of small earthquakes began Monday at a volcano near Anchorage in what scientists said was a warning that Mount Redoubt could be waking from its slumber.
“It is reminding us that it is an active volcano,” said Rick Wessels, a geophysicist with the U.S. Geological Survey in Anchorage.
The swarm of small quakes started early in the day near the summit of Mount Redoubt, about 100 miles (160 kilometers) southwest of Anchorage, with a regular pattern often seen when magma is moving inside a volcano, Wessels said.
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