“Nankai Trough Mega Earthquake Operation Plan” at a glance (This video is in Japanese only.)

To be ready for a national crisis should the Nankai Trough Mega Earthquake occur, we are making every effort to promote various operations.

Overview of Nankai Trough Mega Earthquake Operation Plan

To be ready for a national crisis should the Nankai Trough Mega Earthquake occur, we are making every effort to promote various operations.

Four phases and seven key tasks

“Life-saving” phase

Task 1Disseminate timely information,
and fully support evacuation from mega tsunami’s landfall in short timeframe.

Up to approx. 230,000 deaths from tsunami. Up to approx. 40,000 people who require rescue.

Anticipate up to approx. 323,000 deaths and approx. 170 trillion yen in direct impact, and decreases in production and services amounting to approx. 45 trillion yen.

Take all possible measures aimed at zero deaths due to delayed evacuation.
Provide tsunami warning, etc. quickly and accurately; increase speed and precision of earthquake emergency warning
  • Example of evacuation route/place using existing facility
  • Install high standard levee that can be used as high ground evacuation area

Task 2Take all necessary means to ensure the safety of passengers of
trains, planes, and other transports accessed by hundreds of thousands of people per day.

Approx. 80,000 passengers on Tokaido/Sanyo Shinkansen and approx. 640,000 passengers on local trains in Chukyo/Kinki regions at the time of the earthquake.

Eliminate accidents caused by earthquakes and tsunami to protect passengers.
Seismic strengthening of rail facilities

Task 3In response to catastrophic/wide-area damages,
collect and share info about the affected areas promptly and accurately,
and contribute to emergency activities and evacuation.

Areas measuring SI 6 Lower or stronger: Approx. 71,000k㎡.

Tsunami inundation: Approx. 1,000k㎡, approx. 450 municipalities.

Through MLIT’s collective efforts and all out mobilization of traffic-related industries,
collect and share info using state-of-the-art technology.
Integrated Disaster Information Mapping System (DiMAPS)

“Search and rescue” phase

Task 4Implement all possible efforts to achieve total debris clearance
to secure transport routes and begin rescue activities
in the countless affected areas.

Damages of up to approx. 41,000 road sections, approx. 19,000 rail sections, approx. 5,000 port sections,
and tsunami inundation at 5 airports.

Total debris clearance of land, marine, and air routes. Immediately mobilize patrol vessels, aircraft, etc. from all over Japan and exert every effort towards life-saving activities.
Secure emergency routes through total debris clearance of land, marine, and air routes

Task 5Enhance disaster response capabilities,
such as TEC-FORCE, so that all possible efforts could be made to prevent further damages.

Wide-area and numerous large-scale landslides in the mountains could cause river blockages and catastrophic secondary disasters.

Minimize large-scale secondary disasters through prior strategic preparations
and prompt/precise actions after earthquake.
Situational survey by TEC-FORCE (Technical Emergency Control Force)

“Aid delivery” phase

Task 6Provide full support to tens of millions of affected people/evacuees and affected local governments,
in collaboration with the private sector.

 Shortage of relief supplies is a concern, since up to approx. 4.3 million people would be evacuating at evacuation centers by the following day of the earthquake.

 Transport relief supplies in collaboration with the private sector.
Establish system for transporting relief supplies in collaboration with local governments and logistics companies
Housing for affected people (Great East Japan Earthquake)

“Facility recovery and reconstruction” phase

Task 7Prevent prolongation of disaster's consequences, including through prior preparations.
Seek to achieve early recovery to contribute to reconstructing people’s lives and the economy as quickly as possible.

Yui District, Shizuoka City

In Yui District, Shizuoka City, large landslides will severe Japan's transportation artery for a long period, namely, the Tomei Expressway, National Route 1, and JR Tokaido Main Line.


Nobi Plain

In below sea level areas in Nobi Plain, levees will sink due to tremor and fail to prevent tsunami intrusion, leading to wide-area and long-term inundation.


JR Tokaido Main Line

JR Tokaido Main Line will be damaged in several sections due to tsunami inundation, and service will be severed for long-term.


Japan’s three major bays (Tokyo, Ise, Osaka)

Containers and vessels will pile up at Japan's economic and industrial hubs such as Ise and Osaka Bays, causing serious impacts on the bays' port functions.

Be ready so that fatal damages are not sustained and mitigate post-disaster impacts.
Yui District, Shizuoka City
Situation of landslide bloc in Yui District, Shizuoka City

In the Yui District in Shizuoka City, Japan’s transportation arteries are concentrated in a confined area along the Pacific Ocean, namely, the Tomei Expressway (approx. 31,000 vehicles/day), National Route 1 (approx. 64,000 vehicles/day), and JR Tokaido Main Line (approx. 150 trains/day).

Right above them, there are large blocks to prevent landslides. The tremor of an earthquake could cause the blocks to collapse, and critical transportation networks may be disrupted.