For reference; the earthquake that caused the massive tsunami and Fukushima nuclear reactor disaster 13 years ago was magnitude 9.0. This earthquake was 7.1, roughly 100 times less energetic, though the article notes that seismologists in Japan are warning that stronger earthquakes than this one are more likely than usual in the near future.
This year this particular earthquake is the second time major earthquakes (magnitude higher than 7 Mw) occured in Japan. Globally it's the 4th major earthquakes including the ones in China and Taiwan. It's the highest earthquakes occurance frequency in recorded history.
