What is an earthquake directly below the capital city?

What is the difference between a capital earthquake and a normal earthquake?
And I will introduce in detail why it is said to be dangerous.

What is a "capital earthquake"?

There is also the Olympics, and if there is an earthquake in Tokyo, you're bad at all?
(I think that an earthquake directly below the capital city is an earthquake that occurs in Tokyo ... and notice somebody ...)
I look forward to the Tokyo Olympics!
... An earthquake directly below the capital does not necessarily occur in Tokyo ...?
The "capital" here is not only Tokyo, but refers to the southern Kanto 1 prefecture 3 prefectures including Kanagawa, Chiba, and Saitama prefectures .
Eh, Chiba was still the capital of Japan! ?
(Don't go there ...)

What happens if there is an earthquake directly below the capital city?

* As it happened in the previous conversation, we do not know where it occurs in the southern Kanto region, as it happened in the Tokyo Metropolitan Earthquake.
In this case, it is assumed that the “Tokyo Bay Northern Earthquake (Magnitude 7.3)”, which has a high probability of occurrence, occurs at 6 pm in winter.

Number of buildings destroyed entirely or burned down by fire About 850,000 buildings

Fire 650,000 buildings
Shaking 150,000 buildings
Liquefaction 3.3 thousand buildings
Mudslide 1,200 buildings

Death toll Approximately 11,000 people

Fire 6200 people
Building collapse 3100 people
Mudslide 900 people
Collapse such as block walls 800 people
Traffic damage 200 people

Number of injured people Approximately 210,000 people

Number of serious injuries Approximately 37,000 people

Number of digits, have you made a mistake? Are there any mistakes on the website?
This is the fear of an earthquake directly below the capital. There are other possibilities as well.

Expected damage scenario

・ Fire of high-rise buildings etc. due to long-period ground motion
・ Secondary disasters are caused by the occurrence of aftershocks and heavy rainfall
・ The road may be sealed off by the victims' cars and people, and fire engines and ambulances may not pass.
-Possibility of an accident in which trains collide head-to-head on railways
-Panic centered on hoaxes such as secondary disaster occurrence by SNS services such as Twitter and LINE
-Deterioration of security in some shopping streets and downtown areas
・ The damage of the thief who aimed at a vacant nest
・ Effects on the economy such as fluctuations in interest rates and stock prices

In the case of the Kumamoto earthquake, it seems that there were too many vehicles such as the media at the time of disaster and the road was blocked.
I also use SNS often, so I have to be careful about hoaxes.


As mentioned earlier, it is expected that earthquakes directly under the capital are more likely to be damaged by fires .
As measures, we usually arrange disaster prevention tools so that we can cope properly when fire occurred in one's house,
It is important for the family members to properly discuss disaster behavior. For example ...
・ Install a fire alarm.
・ Check if there is a fire extinguisher and check if the fire extinguisher can be used properly.
・ Learn about evacuation sites at the time of disaster.

Since the data at the time of the earthquake occurrence is only an expectation, depending on the response after the earthquake occurrence, it may change greatly.
The scale of the damage can be reduced even a little by having each person properly understand the Tokyo Metropolitan Earthquake.

Honestly, it was a bigger story than I thought ...
The earthquake to be described next is a large earthquake far larger than this.

Next episode
EP04 / Let's know the Nankai Trough earthquake