Recently, the Japan Government Earthquake Survey Commission announced the results of its investigation, saying that the active fault on the north side of the Noto Peninsula, the epicenter of the Noto Peninsula earthquake, may cause an earthquake with a magnitude of about 8.1 on the Richter scale.
The Noto Peninsula earthquake that occurred on New Year's Day was caused by "active faults on the seabed", and the Earthquake Survey Commission is investigating the active faults on the seabed of the Sea of Japan, and on the 2nd announced 25 active faults in the seabed of the Sea of Japan from Hyogo Prefecture to Niigata Prefecture that could cause a major earthquake.
The Earthquake Survey Committee began assessing the active faults in the Sea of Japan side in 2017, and in 2022 announced the active faults in western Hainan in Japan, and other areas will be announced one after another, but due to the earthquake on the Noto Peninsula on New Year's Day, it was advanced by about a year.
It is reported that as part of the earthquake epicenter of the Noto Peninsula, there is a possibility that an earthquake with a maximum magnitude of about 8.1 on the Richter scale will occur in the "North Coast Fault Zone" on the northern side of the Noto Peninsula and the "Joetsu Thrust Fault Zone" off the coast of Niigata Prefecture, and the scale will exceed that of New Year's Day.
The Earthquake Survey Committee plans to announce the probability of earthquakes in the next 30 years in the first half of next year, and hopes that local governments will formulate earthquake and tsunami damage scenarios and promote regional disaster prevention measures.
Nao Hirata, chairman of the Earthquake Investigation Committee, said, "There have been repeated major earthquakes in many places in the past, and this is not only a place that has happened in the past, but also a place where it is likely to happen in the future. I would like you to refrain from taking this as someone else's business, and to be aware of the possibility of repeated earthquakes in your area, and to prepare for disasters. ”
In that assessment in 2022, there was a high probability that three new magnitude 8 earthquakes would occur in the future. The first was the magnitude 8 earthquake at Hyuga Tanda, which was reviewed as it was found that the area had a magnitude of close to 8 in 1662.
The second is the Nansei Islands in Okinawa Prefecture and the vicinity of Yonaguni Island, where the epicenter of the magnitude 8 earthquake that occurred near Kikai Island in Kagoshima Prefecture in 1911 was shallower than previously thought, and it is estimated that a major earthquake of the same magnitude is possible.
The third major earthquake was a reference to the Yaeyama Earthquake and Tsunami that struck the Maejima Islands in 1771, and the tsunami was 30 meters high. Tsunami sediments left on the former island archipelago show that there have been three tsunamis of the same magnitude as in 1771 in the past, and it is estimated that another major earthquake may occur here.
The probability of an earthquake of magnitude 7 to 7.5 in the next 30 years is about 80% in the Hyuga Bank, more than 90% around Yonaguni Island, and about 60% off the northwest coast of the Maeshima Islands.
Regarding the earthquake, Japan netizens said that as long as they live in Japan, it can happen no matter where they are. Earthquakes are a matter of probability, and all reports of earthquakes can be numbing, and it is well known that everyone living in Japan learns to deal with earthquakes and tsunamis and prepare in advance.
Some netizens who live in the Tohoku region of Japan said that they have suffered many earthquakes in the past, such as the Great East Japan Earthquake, and he believes that this situation will continue. That is why there is no need to worry about the information about the occurrence of such earthquakes, and humans cannot accurately predict earthquakes at present, and I hope that the Japan government will spend the money spent on prediction and research after the earthquake occurs, such as evacuation equipment, rescue equipment, reconstruction costs, etc.