An earthquake (also known as a quake, tremor, or temblor) is the shaking of the surface of the Earth resulting from a sudden release of energy in the Earth's lithosphere that creates seismic waves.

Words Associated with Portugal

Portugal, officially the Portuguese Republic, is a country located on the Iberian Peninsula, in south-western Europe. It is the westernmost sovereign state in mainland Europe, bordered to the west and south by the Atlantic Ocean and to the north and east by Spain, the sole country to have a land border with Portugal.