Is there an earthquake season like tornado season?

Yesterday, March 16took place a earthquake in japan of magnitude 7.4. It was barely five days after the eleventh anniversary of the earthquake that caused the nuclear disaster of Fukushima. In fact, it was triggered practically in the same neighborhood. This inevitably leads to thinking about the possibility that there is a earthquake season, as is the case with tornadoes or hurricanes. If there were, it would be easier to keep people who live in the most tremor-prone areas alert. However, it’s not that easy. There is no fixed time on the calendaralthough, according to a study published in Science in 2021, in some places, there could be some months with more predisposition.

The study was conducted in Taiwan, where there is a very marked rainy season and a much drier one. It is precisely in the latter that it seems that the drop in groundwater levels could somehow push some kind of earthquake season.

Japan also has a Rainy seasonknown as Tsuyu. However, the differences are not so marked. Therefore, the fact that the last earthquake in Japan took place almost at the same time as that of 2011 seems to be just a coincidence.

Japan earthquake history

The largest earthquake ever recorded in Japan was precisely that of Fukushima in 2011. With a magnitude 9.1 and an intense tsunami behind, left around 9,000 dead and more than 12,000 missing. It was a real tragedy that also included the release of radioactive material from its nuclear power plant.

To see the next magnitude earthquake, we must travel far into the past, to 1707. On October 28 of that year, an earthquake of magnitude 8.6 occurred which affected the southwest of the islands of Honshu and Shikoku and the southeast of Kyūshū. More than 5,000 people died and the material damage was incalculable.