an aftershock, registering 4 shindo, occurred in Izumozaki, Niigata. Intensity Automotive production On July 18, Toyota motor announced it stopped production in all of its factories because of the damage done to the Riken parts plant in Kashiwazaki, Niigata. Nissan also had to shut down two factories. Production resumed in Toyota, Mazda, and Honda plants on July 25, after damaged equipment and gas and water supplies were restored. Toyota's production losses amounted to between 46,000 or possibly 55,000 vehicles. Nissan lost 12,000 vehicles. Kashiwazaki-Kariwa Nuclear Power Plant incidents The earthquake caused a leak of radioactive gases from Kashiwazaki-Kariwa Nuclear Power Plant. A small amount of water from the spent fuel pool leaked out but plant operators said the leak was insignificant and did not present any environmental danger. The earthquake also caused a fire in an electrical transformer at the plant that was extinguished after two hours. The government requested that the plant remain closed pending safety inspections. The International Atomic Energy Agency offered to send a team of experts to inspect the plant. The Japanese government initially declined the offer but later accepted it after Niigata Prefecture legislature asked for confidence building efforts to counter public concern about the reactor. Following the incident Dr Kiyoo Mogi, chair of Japan's Coordinating Committee for Earthquake Prediction, called for the immediate closure of the Hamaoka Nuclear Power Plant, which was built close to the centre of the expected Tōkai earthquake. See also List of earthquakes in 2007 List of earthquakes in Japan Sources External links Earthquakes of the Heisei period Chuetsu Earthquake, 2007 History of Niigata Prefecture Chuetsu earthquake July 2007 events in Japan Niigata Prefecture 2007 disasters in Japan