Map of Japanese Nuclear Sites
Japan relies heavily on nuclear power for its energy needs. Following the 2011 Fukushima Daiichi disaster, the country faced intense scrutiny over its nuclear policies. Many reactors were shut down temporarily, and safety regulations were significantly tightened. In recent years, some reactors have been gradually restarted to ensure energy security and reduce greenhouse gas emissions. The government continues to invest in nuclear technology, balancing public concern with the need for a stable energy supply. Despite the challenges, nuclear power remains a crucial component of Japan’s energy strategy, aimed at achieving a low-carbon future while maintaining economic stability. Find out where the country’s nuclear sites are located, and what goes on at each of them, on our interactive map of Japanese nuclear sites.
Quick Guide to using the Map of Japanese Nuclear Sites
MAP – Click and drag to move the map around. Hold Ctrl and use the mouse wheel to zoom in or out. Alternatively use the zoom buttons in the top right corner.
POINTS – Points are coloured based on the purpose of the nuclear site.
COUNTER – The counter in the top left displays the number of nuclear sites under each purpose. Clicking on a specific counter lets you see only sites that fall within that category.
POPUPS – Hovering over a specific point on the map will show you a popup containing additional information about the site.
Data
Below is the full data set used to create the Japan Nuclear Sites Map. You can use it to look up specific nuclear sites.
| Name | Purpose | Latitude | Longitude | Status | Construction Start | Start of Operations | End of Operations | Additional Info |
|---|---|---|---|---|---|---|---|---|
| AHCF | Research Reactor | Decommissioning | 1961 | Criticality Assembly | ||||
| DCA | Research Reactor | Decommissioning | 1969 | Criticality Assembly | ||||
| Fast Critical Assembly (FCA) | Research Reactor | Decommissioning | 1967 | Crit Fast | ||||
| Fugen | Research Reactor | 35.754444 | 136.016389 | Decommissioning | 1972 | 1979 | 2003 | Advanced Thermal Reactor |
| Fukushima Daiichi | Power Station | 37.4214° N | 141.0325° E | Permanently Shut Down | 1967 | 1971 | 2011 | Boiling Water Reactor (BWR) |
| Fukushima Daini | Power Station | 37.3194° N | 141.0211° E | Permanently Shut Down | 1970 | 1982 | 2011 | Boiling Water Reactor (BWR) |
| Genkai | Power Station | 33.515556 N | 129.837222 E | In Service | 1971 | 1975 | / | Pressurized Water Reactor (PWR) |
| GNF-Japan | Fuel Production | 35.237766 | 139.695868 | Operational | Uranium fuel manufacturing plant | |||
| Hamaoka | Power Station | 34.623611 N | 138.142500 E | Suspended Operation | 1971 | 1976 | / | Boiling Water Reactor (BWR) |
| Higashidōri | Power Station | 41.188056 N | 141.390278 E | Suspended Operation | 1997 | 2005 | / | Boiling Water Reactor (BWR) |
| HTR | Research Reactor | Decommissioning | 1961 | Pool | ||||
| HTTR | Research Reactor | 36.266333 | 140.547444 | Operational | 1998 | High Temperature Gas Cooled (HTGR) | ||
| Ikata | Power Station | 33.490833 N | 132.311389 E | In Service | 1974 | 1977 | / | Pressurized Water Reactor (PWR) |
| International Research Center for Quantum Energy and Materials Science | Research Institute | 36.268869 | 140.545116 | Operational | ||||
| Izumiotsu Plant | Fuel Production | 34.5 | 135.41 | Operational | PWR & BWR Fuel Parts Fabrication and Inspection | |||
| JAEA Chemical Processing Facility | Waste Management | 36.440368 | 140.600561 | Operational | ||||
| JAEA Geoscience Centre | Research Institute | 35.378407 | 137.238269 | Operational | ||||
| JAEA Low Level Radioactive Waste Treatment Facility | Waste Management | 36.440829 | 140.605347 | Operational | ||||
| JAEA Plutonium Fuel Production Facility | Fuel Production | 36.435594 | 140.602817 | Operational | ||||
| JAEA Prototype Uranium Enrichment Plant | Fuel Production | 35.314982 | 133.934099 | Shut-Down | ||||
| JAEA Recycle Equipment Test Facility | Waste Management | 36.438801 | 140.602772 | Operational | Fuel cycle research and testing | |||
| JAEA Tokai Reprocessing Facility | Waste Management | 36.439813 | 140.604052 | Operational | Spent fuel reprocessing | |||
| JAEA Tokai Vitrification Facility | Waste Management | 36.43959 | 140.602531 | Operational | High level waste treatment and vitrification | |||
| JAEA Underground Research Centre | Research Institute | 45.043351 | 141.861003 | Operational | ||||
| JAEA Uranium Mine | Fuel Production | 35.386924 | 137.21798 | Shut-Down | Former uranium mine | |||
| JAEA Uranium Mine | Fuel Production | 35.314542 | 133.930132 | Shut-Down | Former uranium mine | |||
| Japan Materials Testing Reactor (JMTR) | Research Reactor | 36.269653 | 140.547669 | Decommissioning | 1968 | Tank | ||
| Japan Proton Accelerator Research Complex (J-PARC) | Research Institute | 36.447992 | 140.603841 | Operational | High Intensity Proton Accelerator | |||
| JMTRC | Research Reactor | Decommissioning | 1965 | Pool | ||||
| JNFL MOX Fuel Fabrication Plant | Fuel Production | 40.957688 | 141.327095 | Under Construction | Mixed Oxide Fuel (MOX) production | |||
| JNFL Uranium Enrichment Plant | Fuel Production | 40.977873 | 141.353572 | Operational | ||||
| JNFL Vitrified Waste Storage | Waste Management | 40.963369 | 141.324067 | Operational | ||||
| Jōyō | Research Reactor | 36.268039 | 140.554093 | Suspended Operation | 1977 | Irradiation Test Facility for Construction Materials | ||
| JRR-1 | Research Reactor | 36.458789 | 140.60051 | Decommissioning | 1957 | Homog | ||
| JRR-2 | Research Reactor | 36.456682 | 140.600895 | Decommissioning | 1950 | Tank | ||
| JRR-3 | Research Reactor | 36.454687 | 140.601373 | Decommissioning | 1962 | Heavy Water | ||
| JRR-3M | Research Reactor | 36.454885 | 140.600804 | Operational | 1990 | Pool | ||
| JRR-4 | Research Reactor | 36.453964 | 140.600622 | Decommissioning | 1965 | Pool | ||
| Kashiwazaki-Kariwa | Power Station | 37.429167 N | 138.595278 E | Suspended Operation | 1980 | 1984 | / | Boiling Water Reactor (BWR) |
| KUCA | Research Reactor | 34.387123 | 135.347964 | Operational | 1974 | Criticality Assembly | ||
| KUR | Research Reactor | 34.38665 | 135.347283 | Operational | 1964 | Tank | ||
| Kyoto University Research Reactor Institute | Research Institute | 34.38712 | 135.347971 | Operational | ||||
| LLW Disposal Centre | Waste Management | 40.974988 | 141.343522 | Operational | Near surface repository for Low Level Waste | |||
| MCF | Research Reactor | Decommissioning | 1969 | Criticality Assembly | ||||
| Mihama | Power Station | 35.703333 N | 135.963333 E | In Service | 1967 | 1970 | / | Boiling Water Reactor (BWR) |
| Mitsubishi Nuclear Fuel | Fuel Production | 36.4737 | 140.544475 | Operational | ||||
| Monju | Power Station | 135.988056 | 135.988056 | Decommissioning | 1986 | 1995 | 2010 | Sodium-cooled Fast Reactor (SFR) |
| Musashi Reactor | Research Reactor | Decommissioning | 1963 | TRIGA | ||||
| National Institute of Radiological Sciences | Research Institute | 35.6356 | 140.1017 | Operational | 1957 | Radiation Research | ||
| NFI Kumatori Plant | Fuel Production | 34.390543 | 135.346229 | Operational | Uranium fuel manufacturing plant for PWR | |||
| NSRR | Research Reactor | 36.460491 | 140.606336 | Operational | 1975 | TRIGA | ||
| Oarai Research and Development Insititute | Research Institute | 36.263291 | 140.549647 | Operational | ||||
| OCF Ozenji Critical Facility | Research Reactor | Decommissioning | 1962 | Criticality Assembly | ||||
| Ōi | Power Station | 35.540556 N | 135.651944 E | In Service | 1970 | 1979 | / | Pressurized Water Reactor (PWR) |
| Ōma | Power Station | 41.5097° N | 140.9103° E | Under Construction | 2008 | / | / | Advanced Liquid Metal Reactor (ALMR) |
| Onagawa | Power Station | 38.401111 N | 141.499722 E | In Service | 1970 | 1984 | / | Boiling Water Reactor (BWR) |
| RFS Interim Spent Fuel Storage Facility | Waste Management | 41.355645 | 141.246508 | Operational | ||||
| Rokkasho | Multi-Purpose | 40.9625 | 141.326389 | Under Construction | 1993 | / | / | MOX Fabrication, Uranium Enrichment, HLW Monitoring, LLW Repository |
| SCA | Research Reactor | Decommissioning | 1966 | Criticality Assembly | ||||
| Sendai | Power Station | 31.8336° N | 130.1897° E | In Service | 1979 | 1984 | / | Boiling Water Reactor (BWR) |
| Shika | Power Station | 37.0611° N | 136.7264° E | Suspended Operation | 1979 | 1993 | / | Boiling Water Reactor (BWR) |
| Shimane | Power Station | 35.5383° N | 132.9992° E | Suspended Operation | 1971 | 1974 | / | Boiling Water Reactor (BWR) |
| Static Experiment Critical Facility (STACY) | Research Reactor | Suspended Operation | 1995 | Criticality Assembly | ||||
| Takahama | Power Station | 35.5222° N | 135.5047° E | In Service | 1970 | 1974 | / | Boiling Water Reactor (BWR) |
| Tank Critical Assembly (TCA) | Research Reactor | Decommissioning | 1962 | Criticality Assembly | ||||
| Tokai | Power Station | 36.4664° N | 140.6067° E | Suspended Operation | 1961 | 1966 | / | Boiling Water Reactor (BWR) |
| Tokai | Multi-Purpose | 36.456 | 140.606 | Operational | Research, Fuel Production, Waste Management | |||
| Tomari | Power Station | 43.0361° N | 140.5125° E | Suspended Operation | 1970 | 1989 | / | Pressurized Water Reactor (PWR) |
| Toshiba NCA | Research Reactor | 35.549406 | 139.691977 | Suspended Operation | 1963 | Criticality Assembly | ||
| Transient Experiment Critical Facility (TRACY) | Research Reactor | Decommissioning | 1995 | Pulsing | ||||
| TRIGA-II Rikkyo | Research Reactor | Decommissioning | 1961 | TRIGA | ||||
| Tsuruga | Power Station | 35.6728° N | 136.0772° E | Suspended Operation | 1967 | 1970 | / | Boiling Water Reactor (BWR) |
| TTR | Research Reactor | Decommissioning | 1962 | Pool | ||||
| UTR KINKI | Research Reactor | 34.649259 | 135.587157 | Operational | 1961 | Argonaut | ||
| VHTRC | Research Reactor | Decommissioning | 1985 | Criticality Assembly | ||||
| YAYOI | Research Reactor | Decommissioning | 1971 | Fast Source |
