Central government involvement in disclosing information about accidents or damage at nuclear power plants is to be increased by the Nuclear and Industrial Safety Agency, agency officials said Tuesday.

The agency acknowledged that residents and local governments were informed too slowly when a powerful earthquake hit the country's largest nuclear power station in July.

Rather than relying solely on power utilities, the agency plans to open an emergency Web site, transmit information by e-mail to registered residents and post information on electronic bulletin boards at evacuation centers.