The Japanese government is moving to establish a secondary capital to ensure the continuity of state functions in the event of a catastrophic earthquake. Following legislation ratified by the parliament on July 24, 2026, the country is now evaluating potential cities capable of serving as a backup administrative and economic hub, according to reports from Journal de l’Économie and Europe Says.
The Rationale Behind a Backup Capital
Japan’s legislative push is driven by dire geological forecasts. According to data cited by Bloomberg and reported by Journal de l’Économie, there is an estimated 70% probability that an earthquake of magnitude 7 or greater will strike the Tokyo metropolitan area within the next 30 years. The new law aims to ensure the continuity of the state’s functioning even if the capital is hit by an earthquake or a major emergency, according to Europe Says.
Beyond disaster preparedness, the initiative seeks to address the “hyper-concentration” of Japan’s population and economic activity in Tokyo. By decentralizing key government functions, officials hope to distribute economic growth more evenly across the archipelago, according to Europe Says.
Candidate Cities and Selection Criteria
To qualify as a secondary capital, cities must meet specific benchmarks. According to Europe Says, candidates must be located at a safe distance from Tokyo, possess robust infrastructure, demonstrate commercial vitality, and show a high capacity to withstand natural disasters. The government requires that these locations be capable of assuming political and administrative duties immediately during an emergency.
Competition is already underway among several major regions:
- Osaka: Viewed as a front-runner due to its infrastructure and economic scale. Governor Hirofumi Yoshimura has expressed strong interest, suggesting the designation of multiple regions to create a network of new centers, as reported by Journal de l’Économie.
- Nagoya (Aichi Prefecture): Governor Hideaki Omura confirmed the region’s readiness to host government functions, emphasizing the existing capabilities of the Aichi area.
- Fukuoka: Governor Seitaro Hattori is promoting a “Fukuoka-wide” model, which involves a strategic partnership between the cities of Fukuoka and Kitakyushu.
- Other Contenders: Both Hokkaido (represented by Governor Naomichi Suzuki) and Miyagi (represented by Governor Yoshihiro Murai) have expressed formal interest in the selection process.
Did you know?
Japan is not the first nation to pursue a multi-capital strategy. According to Europe Says, there are currently about a dozen countries globally that utilize multiple cities for capital functions, with South Africa famously maintaining three distinct capitals.
Administrative Requirements and Future Outlook
The legislation does not limit the title to a single city. Instead, it allows for multiple prefectures to be designated as secondary capitals simultaneously. To support this transition, the government plans to offer tax incentives and regulatory relief to the chosen regions, according to Journal de l’Économie.
While the legislative framework is in place, the specific timeline for the final selection remains fluid. The government is expected to announce its decision sometime next year. The process will likely involve significant urban planning, with some regions—such as Osaka—already considering structural reforms to accommodate their new potential roles.
Frequently Asked Questions
Why does Japan need a secondary capital?
The primary driver is disaster resilience. A secondary capital would ensure that the state and financial institutions continue to function if a major earthquake incapacitates Tokyo.
Will Tokyo lose its status as the capital?
No. The legislation focuses on creating a “backup” or “secondary” capital to support the existing functions of Tokyo, not replacing it.
How many cities can be selected?
The law allows for multiple prefectures to be designated as secondary capitals, opening the door for a network of regional hubs rather than a single successor city.
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