Argentina regularly receives cold air from the south that can reach low latitudes owing to the influence of the Andes. Cold waves are often accompanied with severe snow storms or extremely cold conditions that can have a devastating impact on its economy.
The Richter Scale measures the magnitude of an earthquake which is  another way of describing the energy released in the earthquake.
These two ratings describe the power of the earthquake from two different perspectives. The most common standard of measurement for an earthquake is the Richter scale, developed in 1935 by Charles F. Richter of the California Institute of Technology. The Richter scale is used to rate the magnitude of an earthquake -- the amount of energy it released.