One of the most disastrous events in 2011 was the earthquake near the east coast of Honshu in Japan. It was the earthquake in the Pacific Ocean, which influenced the Tohoku region. Scientisits called it “Great eastern earthquake”, as its consequences were really disastrous not only for Japan, but for the whole world. The epicenter of the earthquake was defined in the in 130 km to the east from the city of Sendai and in 373 km to the north-east of Tokyo. The hypocenter of the most devastating underground shock which occurred at 05:46 in the morning was at a depth of 32 km below the sea level in the Pacific Ocean.

One of the most disastrous events in 2011 was the earthquake near the east coast of Honshu in Japan. It was the earthquake in the Pacific Ocean, which influenced the Tohoku region. Scientisits called it “Great eastern earthquake”, as its consequences were really disastrous not only for Japan, but for the whole world.
The epicenter of the earthquake was defined in the in 130 km to the east from the city of Sendai and in 373 km to the north-east of Tokyo. The hypocenter of the most devastating underground shock which occurred at 05:46 in the morning was at a depth of 32 km below the sea level in the Pacific Ocean.

This earthquake is often referred to as the strongest earthquake ever known in the history of Japan. It was also estimated as the fourth in force in the history of seismic observations in the world. However, according to the number of victims and the scale of the destruction, it yields to the earthquake in Japan in 1896 and 1923 (the most severe of the consequences).

The quake occurred at a distance of about 70 km from the nearest point of the coast of Japan. The initial calculation has shown that the waves of the tsunami reached the first affected areas of Japan for approximately 10 minutes. After 69 minutes after the earthquake, the tsunami flooded Sendai airport.

Immediately after the earthquake scientists forecasted that within a month after the first stroke in Japan could happen the next earthquake of magnitude above 7 points. The strongest impetus was preceded by a series of major earthquakes-foreshocks, which began on the 9 th of March with the push of magnitude 7.2 points approximately 40 km from the main shock and continued by the other three shocks in the same day with a magnitude of 6 points. A minute before the start of the earthquake in Tokyo the warning system, consisting of 1000 seismographs in Japan, passed on television the message about the coming earthquake. This became possible due to the fact that seismic S-waves move at the speed of 4 km/s and it took them 90 seconds to overcome the distance of 373 km to Tokyo. It is considered, that the message saved a large number of lives.
After the earthquake Japan with the help of other countries did everything for the victims of the disaster and their families.