Answer:The economies of major southern cities can be less generalized than those of cities in the northeast. Miami, for example, is a major port city but is also a major city in tourism and the cruise industry. Atlanta has become a center of finance and business.
Houston's location on the Gulf of Mexico allowed it's economy to gain strength from oil. Dallas grew as a result of the livestock business. New Orleans, ravaged recently by Hurricane Katrina, was a great cultural center and tourist destination. The city is struggling to repair itself.
Earthquakes cause that’s on earth the others are man made but naturally it earthquakes. B earth quakes.have a good day hope this helps :)