<P> Mexico is one of the world 's most seismically active regions , sitting atop several intersecting tectonic plates . The border between the Cocos Plate and North American Plate , along the Pacific Coast of Mexico , creates a subduction zone that generates large seismic events . Activity along the edges of the Rivera and Caribbean plates also generate seismic events . All together , these seismic forces cause an average of 40 earthquakes a day in Mexico . </P>
what type of boundary was the mexico earthquake
a subduction zone