What is the primary source of stored thermal energy in oceans?

true. earthquakes are felt whenever there is a slip around a fault in the rocks below the earth. this reorientation of faults create sesmic waves and is known as earthquake, the severity of which is measured in richter scale. these are more prominent in hilly regions as the rocks usually form faults to balance the pressures on it.

what events in mexico's history might explain why the country continues to have difficulty improving social justice and economic opportunities for all people?