Antarctic ice sheet earthquakes shed light on ice movement and earthquakes

Antarctic ice sheet earthquakes shed light on ice movement and earthquakes

Penn State geoscientists made analysis of small, repeating earthquakes in an Antarctic ice sheet. They point that it may  lead to an understanding of glacial movement and also shed light on stick slip earthquakes like those on the San Andreas fault or in

Polynya near Ross Island, off the Antarctic Coast

Polynya near Ross Island, off the Antarctic Coast

In some places in Arctic and Antarctic where sea ice should occur, open water appears instead and those persistent areas of open water amidst sea ice are known as polynyas. They can happen as a result of the upwelling of warm ocean water and also from winds.Recent