Many people abandoned the city of Oaxaca after the earthquake and low property prices meant that a small number of families were able to gain ownership of most of the city . A magnitude 7.5 earthquake on September 30 , 1999 had a hypocenter close to that of the 1931 earthquake
magnitude 7.5 earthquake on September 30 , 1999
1999 Oaxaca earthquake
1931 Oaxaca earthquake