Although it is customary to refer to Tokyo as "Tokyo City", there is no such thing as "Tokyo City" according to the administrative division of the Japanese mainland.

Theoretically, Japan's administrative districts are divided into three tiers, and Tokyo's administrative division belongs to the category of "capitals" among the first-level administrative districts, that is, the Tokyo Metropolitan Government.

There are also three types of first-class administrative districts on the same level as the "metropolis", such as "province", "prefecture", and "prefecture", such as Hokkaido, Osaka Prefecture, and Kumamoto Prefecture.

If these four types of first-level administrative regions correspond to the situation in China, roughly speaking, "capital" is similar to the capital of China, "dao" is similar to Xinjiang and Tibet, and other autonomous regions with large areas with ethnic characteristics, "fu" is similar to municipalities directly under the central government, and "county" is similar to ordinary provinces.

Below the first-level administrative districts, there are second-level administrative districts such as cities and counties, and below are towns, villages, and districts, similar to the township streets of Huaxia.

The names of the eight major places such as Kyushu, Shikoku, and Kanto are similar to the broad geographical divisions of South China, Central South China, and East China.

Today, the country has 47 first-level administrative regions, with a total area of nearly 380,000 square kilometers, which is slightly smaller than Yunnan-Yunnan Province in China.

Although the area is relatively small, due to its long and narrow land, the north-south span has reached more than 3,000 kilometers.

The perceptual range of primary terrestrial authority is about 100,000 square kilometers, which is about 180 kilometers when converted into a radius......

After a rough estimate, Lin Han came to a conclusion. In order to ensure that strong earthquakes were predicted, he had to travel back and forth between the north and south ends of Japan once a week, as far north as Hokkaido and as far south as Kyushu.

Of course, he didn't need to go directly to the northernmost and southernmost points, as long as he traveled back and forth between central Hokkaido and Kumamoto Prefecture, he could basically learn about the geological changes in the whole of Japan.

Since Japan has opened a high-speed railway system that runs through the whole country, it will not take much time to lie down and lie down from the north to the south, and it is estimated that it will be more than enough for about a day.

After making some planning in his heart, Lin Han immediately sat cross-legged on the floor, closed his eyes and began to perceive the geological information near Tokyo.

In order to be able to perceive the geological changes more clearly, the house he bought in Tokyo is also located on the first floor, close to the surface, and as long as he sits on the floor, the perception effect of the earth authority is quite good.

Speaking of which, the housing prices in Tokyo are really scary, and the most prosperous area has reached more than 5 million yen (more than 300,000 yuan) per square meter, which is more than that of Beijing, Shanghai and Guangzhou.

Although the house bought by Lin Hantuo is relatively remote, it also cost more than 100 million yen, which is really terrifying......

As his mind calmed down, he saw a "holographic geological map" centered on Tokyo appear, with a distinct structure and changes in time and latitude.

I have to say that Japan deserves to be a country on earthquakes.

As soon as Lin Hanfu distinguished, he clearly sensed that in the next week, several minor earthquakes would occur in a large area near Tokyo.

Previously, when he was in China, he only felt some very faint tremors for such a long time, which were so detailed that they could not be called earthquakes at all.

Now that he has arrived in Japan, he can immediately perceive several slight earthquakes, although ordinary people basically can't notice anything abnormal, but the world difference between the two can make Lin Han stunned for a while.

Unfortunately, there are no strong earthquakes in the vicinity for the time being, and only one earthquake is felt.

This situation did not surprise Lin Han, after all, a strong earthquake of magnitude 6 or above is not a cabbage, how can it be so easy to bump into it.

As for a major earthquake of magnitude 7 or higher, even in Japan, the average is less than once a year, so it is entirely a matter of luck.

Although no strong earthquakes were found, Lin Han did not feel lost at all.

Because he also found a lot of special things......

"In the middle of the night, there were a lot of people in the basement of the Prime Minister's residence, and I didn't know what they were busy with. Lin Han thought with some wicked amusement.

In his perception, there was a huge basement under the Prime Minister's official residence, in which people came and went, and the walking route was quite rigorous and meticulous, and it was clear what kind of secret place it was.

Of course, with his current ability, although he can sense the existence of the basement and the personnel, the specific situation inside is unknown.

Besides, he didn't have much interest in these things, so he took a general look and passed by.

In addition to the Prime Minister's official residence, Lin Han also discovered many mysterious places, various confidential basements, deep and shallow, and some completely sealed unmanned basements, which were particularly strange.

The capital of a country is indeed full of secrets, and it is not enough for outsiders.

Of course, what surprised him the most was the huge basement hidden under ordinary residential buildings, not to mention the huge scale and very heavily guarded, which was better than the Prime Minister's Mansion and the National Assembly Building.

"What kind of place is this? Hidden so deeply......"

It is normal for official residences, parliaments, and other institutions to have their own confidential land.

But it is really rare to have a secret place hidden in the middle of ordinary houses, and it is so large and so heavily guarded.

Lin Han observed carefully for a moment, and there was a faint guess in his heart.

"Since it's Tokyo, that's what is hidden here......" he muttered to himself.

After thinking about it for a long time, Lin Han continued to "scan" around Tokyo, and expanded his attention to the periphery.

This time, he sensed a lot of treasures, large and small, some buried on the side of the road, some buried under the house, and some hidden in the mountains.

Japan has poor resources and a relatively short history, and the scale and quantity of treasures are inferior to those of China.

There are not many large treasures, but the most conspicuous is a secret treasure located in Mt. Akagi in Gunma Prefecture, northern Tokyo, buried in the belly of the mountain.

Of course, the excavation of such a large treasure is bound to destroy the environment, and if something is not done, Gaia will definitely not let him dig it casually.

As for those scattered little treasures, it is not too late to open the expedition company to Japan in the future.

After a general perception of the situation around Tokyo, it was already late at night.

Lin Han took out a map of Japan, considered it, and then made up his mind.

Let's go to Fukushima Prefecture tomorrow.

A few years ago, a huge earthquake with a magnitude of 8.9 struck Fukushima Prefecture, causing countless deaths and injuries.

In addition to the direct seismic destructive power, the most impressive thing about that earthquake was the explosion at the Fukushima nuclear power plant and the "salt shortage incident" indirectly caused by it in China.

To this day, Fukushima Prefecture's population and economy have been in a state of slump due to nuclear contamination......