An earthquake occurred in parts of Southern Ontario and Eastern Québec on the afternoon of June 23, 2010. The earthquake was rated at 5.0 on the Richter Scale and was felt at the Darlington, Pickering and Gentilly-2 nuclear power plants, as well as at the Chalk River Laboratories.
All licensees have confirmed that their operations have not been affected by the earthquake. There is no indication nor anticipation of any impact for the stations. As per procedures, licensees are completing a thorough review of station systems to confirm.
CNSC staff, both on site and in Ottawa, continue to monitor the event follow-up activities.
The preliminary INES rating for this event is '0' - below scale.
Event date: Wed, 23-06-2010