Experts say that due to the impact of the earthquake on the night of the 13th that occurred off the coast of Fukushima Prefecture, strain may be added at the plate boundary such as off the coast of Fukushima Prefecture near the epicenter of this time, making it easier for earthquakes to occur. I found out by the analysis of.
Experts point out, "In addition to offshore Fukushima and Miyagi, there is a possibility that an earthquake accompanied by a tsunami will occur around the epicenter of the huge earthquake 10 years ago, so please be vigilant."
Professor Shinji Toda of Tohoku University, who is familiar with the mechanism of the earthquake, analyzed what kind of strain was caused by the magnitude 7.3 earthquake that occurred off the coast of Fukushima Prefecture on the night of the 13th.
This earthquake occurred inside the sea-side plate subducting under the Japanese archipelago, but as a result of analysis, a "plate boundary type" earthquake that occurs at the boundary between the land-side and sea-side plates , It turned out that it may be more likely to occur off the coast of Fukushima prefecture, which is directly above the epicenter area on the night of the 13th.
Professor Toda points out that "the area off the coast of Fukushima Prefecture was a region where strain had accumulated after the Great East Japan Earthquake, and it seems that the new strain was added by this earthquake, making it easier for the plate boundaries to shift."
On top of that, "In addition to the offshore areas of Fukushima and Miyagi, in areas such as the north and south of the epicenter area of the huge earthquake 10 years ago and the outside of the Japan Trench, there is a possibility that an earthquake accompanied by a tsunami will occur due to the impact of a huge earthquake of magnitude 9. Please do not neglect. "