One day is "Disaster Prevention Day".

This year's government's comprehensive disaster prevention drill confirmed the initial response of the national government and the procedure for cooperation between ministries and agencies, assuming that an earthquake directly beneath the Tokyo metropolitan area occurred in the 23 wards of Tokyo and caused enormous damage due to the violent shaking. To do.

According to the government's comprehensive disaster drill, a magnitude 7.3 earthquake with an epicenter in the 23 wards of Tokyo occurred shortly after 7:00 am, and violent shaking with a seismic intensity of 7 in Tokyo and a seismic intensity of 6 or higher was observed in the southern part of the Kanto region. It is done on the assumption.



In the training, the Prime Minister's Office and each ministry and agency will be connected via the Internet, and an online "emergency disaster response headquarters" will be set up to discuss the damage situation and response policies.



In addition, we will hold a video conference with Yokohama City, which is expected to cause great damage, to share the damage situation and confirm the necessary support.



After that, Prime Minister Suga will hold a press conference for training, explain the government's response status, and call for cooperation from the people.



In order to prevent the spread of the new coronavirus, the "Emergency Disaster Countermeasures Headquarters Meeting" in which ministers participate will be held online for the first time, and the government training will be conducted with a reduced number of people, and the scale of training in each region will be reduced. Is scheduled.

Impact on central functions of the capital Assuming a particularly large earthquake

The "earthquake directly under the capital", which is expected to cause great damage in the Tokyo metropolitan area, is a magnitude 7 class earthquake that the government's Earthquake Research Committee estimates with a 70% probability within the next 30 years.



In 2013, a national study group made up of experts announced the damage estimation caused by the largest earthquake and the direction of countermeasures.



There are various types of earthquakes that occur directly under the capital, but the damage estimation occurs inside the "Philippine Sea Plate" that sinks under the land plate, and the magnitude that has a particularly large impact on the central function of the capital. It is considered to be a large earthquake of the type "directly below the southern part of the city center" in 7.3.

The specific assumption is

It is assumed that the Edogawa Ward and Koto Ward of Tokyo will be hit by violent shaking with a seismic intensity of 7, and the four prefectures of Tokyo, Chiba, Saitama, and Kanagawa will be hit by a violent shaking with a seismic intensity of 6 or higher.



The most damaging is the case of an earthquake in the windy "winter evening", where fire is most often used in houses and restaurants, and 610,000 buildings are completely destroyed or burned down. Of these, 412,000 are said to be destroyed by fire.



About 23,000 people have died, and 70% of them, about 16,000, are attributed to fire.



It is estimated that 123,000 people will be injured, 58,000 people will need help, and up to 7.2 million people will be evacuated.

Lifeline Transportation Impact on the economy

The impact on lifelines such as water and sewage and electricity and traffic is also expected to be prolonged.



Heavy traffic congestion continues for several weeks on general roads in the city center, railroads may remain inoperable for about a week to a month, and fuel such as food, water, and gasoline will continue to be in short supply.



Economic damage is estimated to amount to more than 95 trillion yen, including direct damage to buildings and indirect damage caused by deterioration of corporate production activities and services.