Magnitude 5.7 earthquake in western Shizuoka Prefecture, Japan… “Beware of major earthquakes for 2-3 days” (comprehensive)
Quick Look
- A magnitude 5.7 earthquake occurred in the west of Shizuoka Prefecture, Japan, injuring at least 15 people in Aichi Prefecture and elsewhere, and disrupting Tokaido Shinkansen service.
- The Korea Meteorological Administration urged people to be cautious of earthquakes with a maximum magnitude of 5 for the next week.
AI-generated summary
Why It Matters
A magnitude 5.7 earthquake occurred in the west of Shizuoka Prefecture, Japan, and the epicenter was at a depth of 40 km. There was no tsunami. The Korea Meteorological Administration announced that caution is needed for earthquakes of up to magnitude 5 over the next week, and warned that there is a high possibility that large-scale earthquakes will occur in the next two to three days. However, it was explained that the possibility of a relationship between this earthquake and the Great Nankai Trench Earthquake was low.
A magnitude 5.7 earthquake occurred in the west of Shizuoka Prefecture, Japan, at 1:04 am on the 8th.
According to the Japan Meteorological Agency, the depth of the epicenter was 40 km, and no tsunami occurred.
Due to this earthquake, tremors of magnitude 5 on the seismic intensity scale were observed in Chita City, Aichi Prefecture.
Unlike magnitude, which refers to absolute intensity, the Japan Meteorological Agency's earthquake rating, seismic intensity, is a relative concept that numerically expresses the feeling of people in the area or the degree of shaking of surrounding objects when an earthquake occurs. At a seismic intensity level of 5, you will feel impaired in most activities and furniture that is not secured may fall over.
Tremors of magnitude 5 were detected in Seto City, Handa City, Kariya City, Toyota City, Shinshiro City, Tokai City, Miyoshi City, and Dogo-cho in Aichi Prefecture, Hamana Ward in Hamamatsu City in Shizuoka Prefecture, Enashi in Gifu Prefecture, and Urugi Village in Nagano Prefecture. A seismic intensity level of 5 or so is a level of shaking that causes most people to feel fear, find it difficult to stand without holding on, and cause dishes or books on the shelf to fall.
This earthquake caused injuries in many places.
According to NHK, at least 12 people in Aichi Prefecture suffered injuries such as hitting their heads or falling. It was reported that three people were also injured in Shizuoka Prefecture.
Delays occurred as the Tokaido Shinkansen operated at reduced speeds between Shizuoka and Hashima, Gifu Prefecture, and some conventional lines stopped operating from the first train that day.
The Japan Meteorological Agency held a press conference early in the morning and said, "We need to be careful about earthquakes with a maximum magnitude of 5 for the next week or so," and added, "There is a high possibility that a large-scale earthquake will occur in the next two to three days."
However, it was explained that there appears to be a low possibility that this earthquake is related to the Great Nankai Trench Earthquake.
What to Watch
AI outlook — possibilities, not facts
Additional earthquakes of up to magnitude 5 are likely to occur over the next week.
Likely · Within days
Open Questions
- The specific extent of injuries of the injured and whether they were transported to a hospital
- Scheduled resumption of Shinkansen and conventional line operations
- Amount of damage to buildings and infrastructure caused by earthquake







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