Los Angeles being the main battlefield?

I think I remember Elizabeth Olsen mentioning San Francisco in an interview, so I'm guessing that's where it will take place.

But in the Teaser the Big skyscaprer in the middle was taller then the rest so that,s got too be Los Angeles because San fransisco doesn,t have that tall building in the city but im not sure i think los angeles will be the second main city :/

That wasn't an actual teaser trailer, it was just proof of concept footage, meaning that it was made to show that they were on the right track with the tone of the movie and their depiction of Godzilla himself. It was made before actual production of the movie even started, so nothing seen in it, not the city that was shown, or the dead monster, or the design of Godzilla, have anything do do with what will be in the actual film. Although, you may be right about both San Fran and LA appearing, since the plot summary that we've been seeing on everything says that the monsters Godzilla fights "threaten our very existence," so it wouldn't really make sense if it was all confined to one city.

I think it would be cool, because some of the movie was filmed in Hawaii,  for the final fight between Godzilla and the yet-to-be-released main antagonist monster to take place within the Mount Kilauea caldera. But that is just me