What point of reference is moving about 34 miles per year from the canadian arctic toward russia?

Researchers at the US National Oceanic and Atmospheric Administration alongside those at the British Geological Survey will in general refresh the area of the attractive north shaft at regular intervals in December, however this refresh came early as a result of the post's quicker development.  The early refresh had been planned for discharge in January this year, however was postponed by Donald Trump's US government shutdown.  

Since 1831 when attractive North was first estimated in the Canadian Arctic it has moved around 1,400 miles (2300 kilometers) toward Siberia. Its speed hopped from about 9mph (15kph) to 34mph (55 kph) since 2000.  The reason the shaft isn't static is because of development and choppiness in Earth's fluid external center.  

The liquid sea of iron and nickel in the planet's center produces an electric field, which moves around step by step, yet some of the time erratically.