(KALB) - Mexico is prone to earthquakes because it is in the "Ring of Fire". The "Ring of Fire" is a horseshoe-shape around the edges of the Pacific Ocean, from Australia to the Andes. About 90% of earthquakes occur in this area.
Mexico is also atop three of the largest tectonic plates on Earth: the North American Plate, Cocos Plate and the Pacific Plate. When parts of the plates grind together, earthquakes are likely to happen. They get stuck and the pressure builds up, then a sudden and violent release of the pressure happens. Mexico City is built on a former lakebed. This is made of soft soil that has been found to help intensify the effects of an earthquake.
It is one of the most seismically active countries in the world.