The earthquake in Japan fluctuates vertically?

At 12: 28 on September 16, the North Kanto region was shaken by an earthquake of magnitude 5.6.

Although there was no tsunami warning, it initially recorded a number of minor losses in the localities while some witnesses said that vertical vibration instead of horizontally like previous earthquakes.

According to a reporter in Shibua district, central Tokyo, the vibration lasted for about 1 minute and could feel clearly below the ground.

Some furniture in the office of the Vietnam News Agency's resident office in Tokyo has a slight deviation but no significant damage. The activities of the people in the surrounding area still occur normally, without disturbance.

At the door of West Shinjuku, Yasushi Honda company employee said: 'I feel the company's elevator vibrates vertically. I hurriedly left the elevator and headed down the stairs. Many other female employees were also nervous. "

Photo: jma.go.jp

In Sano City, Tochigi Prefecture was subjected to vibration at level 5, following the Japanese scale. Sano's head of risk management department said: 'Shaking abruptly from the bottom up. Moderate vibrations should keep books on the price not falling ".

If the longitudinal vibration is determined, this is one of the many potentially dangerous vibrations because the most advanced earthquake measures currently only limit the damage to the horizontal vibrations. .

The massive earthquake in Kobe in 1995 occurred during a short period of 13-14 seconds of vertical jerks and a period of 1 to 2 seconds of oscillation caused great damage, killing the lives of 6,434 people.

Up to now, there has been no major damage after the earthquake. Maebashi City, Gunma Province, also suffered a level 5 earthquake and a car was partially landslided while no cases were injured in this earthquake.

Kiryu City, Gunma Prefecture, recorded level 4 tremor with a 50-year-old woman injured while two cases in the city of Ota and the town of Oizumi were injured.

According to the Japan Railway Company, the Shinkansen high-speed rail system of Tokyo-Odawara has to stop working in an emergency but has been operating again after 15 minutes. Other high-speed rail lines also automatically shut down and return to normal after 10-30 minutes.

All other tram lines in Tokyo such as Tokyo Metro, Tokyu, Keisei and Tokyo Monorail also stop operating all the way to ensure safety.