Following Tuesday night's magnitude 6.7 earthquake in northwest Japan, Osaka Prefecture, the host of the Group of 20 summit scheduled next week, isn't planning additional changes to its emergency safety plans, officials said Wednesday.

Kazuo Fudo, an assistant chief of the Osaka Prefecture's fire prevention and safety affairs division, said the city of Osaka already has a regional disaster prevention plan, which the city will follow in case of an earthquake.

The G20 summit will convene on June 28 and 29 at Intex Osaka in the city's waterfront area.