A new study identifies about 20,000 earthquakes—one every 25 minutes or so for a year—on the David Glacier in Antarctica.
“The best idea we have is that during those 300 days, a dirty patch of ice was in contact with the mount, changing the way stress was transferred,” says Penn State geoscientist Lucas K. Zoet.
“The glacier is experiencing earthquakes again, although at a different rate.”
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