Data show Antarctic ice stream radiating seismically

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Douglas Wiens (left) and a colleague ready equipment to emplace seismographs in Antarctica during a 2001 expedition. Data gathered for this project called TAMSEIS provided evidence that an Antarctic ice stream radiates seismic waves twice daily that ...
Douglas Wiens (left) and a colleague ready equipment to emplace seismographs in Antarctica during a 2001 expedition. Data gathered for this project, called TAMSEIS, provided evidence that an Antarctic ice stream radiates seismic waves twice daily that are equivalent to a magnitude seven earthquake. Image courtesy of Doug Wiens

A seismologist at Washington University in St. Louis and colleagues at Pennsylvania State University and Newcastle University in the United Kingdom have found seismic signals from a giant river of ice in Antarctica that makes California's earthquake problem seem trivial.


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