At around 7:46 am on the 14th, there was an earthquake with an epicenter at a depth of 450 km south of the Tokaido, and shaking with a seismic intensity of 3 was observed in Tokyo, Ibaraki, and Tochigi prefectures, as well as a wide range from Tohoku to Kyushu. I observed shaking with seismic intensity 2 and 1.
There is no need to worry about the tsunami caused by this earthquake.
Seismic intensity 3 tremors were observed in Chiyoda Ward, Tokyo, Kasama City and Toride City in Ibaraki Prefecture, and Kanuma City and Takanezawa Town in Tochigi Prefecture.
In addition, tremors with seismic intensities 2 and 1 were observed in a wide range of Tohoku and Kanto Koshinetsu, Shizuoka and Kagoshima prefectures.
According to the observation by the Japan Meteorological Agency, the epicenter is off the south coast of the Tokaido and the depth of the epicenter is 450 km.
The magnitude, which indicates the magnitude of the earthquake, is estimated to be 6.2.
Is it shaking over a wide area in the "abnormal seismic area"?
Regarding this earthquake, Professor Takashi Furumura of the Earthquake Research Institute, the University of Tokyo said, "It seems that the earthquake occurred inside the" Pacific Plate, "which has a deep epicenter and is subducting from the eastern part of the Pacific Ocean to the bottom of the Japanese archipelago. The earthquake is called the "abnormal seismic zone," and it seems that the quake traveled far inside the subducting plate. "
He added, "In the case of an" abnormal seismic area, "there is a characteristic that people can easily feel it because the shaking tends to be long and small depending on how the seismic waves are transmitted."