A 7.1 magnitude quake shook the state in the morning.
Some people suffered panic attacks, but there were no immediate reports of damages or injuries.
Earthquake shakes Mexico City
The epiceter was located in San Marcos, State of Guerrero.
Also for the victims of the earthquake in 1985.
The authorities claim to be better organized and have better technology.
The quake was the strongest recorded in the world this year, but the swift evacuation of coastal zones and strict building regulations appeared to help keep the death toll low.
A magnitude 8.3 earthquake hit off the coast of Chile on Wednesday, shaking buildings in the capital city of Santiago and generating a tsunami warning for Chile, Peru and Hawaii.
The 6.7 degree earthquake occurred in the sea.
Earthquake shakes Oaxaca
Its epicenter was located in the Tehuantepec Isthmus.
The 5-magnitude quake hit Oaxaca at 5:31 Thursday morning.