(iii)The Sea of Hyuga

Both small and middle-sized earthquakes.

2 Destructive Earthquakes Occurring in Japan

3 Urakawa Earthquake

4 Nihonkai-Chubu Earthquake

5 Oga-Hanto Earthquake

6 Niigata Earthquake

7 Nishi-Saitama Earthquake

8 Nagano-ken Seibu Earthquake

9 Fukui Earthquake

10 Kita-Tango Earthquake

11 Kita-Tajima Earthquake

12 Tottori Earthquake

13 Hyogo-ken Nanbu Earthquake

14 Ebino Earthquake

15 Kikai-Shima Earthquake

16 Hyuga-nada Earthquake(Earthquakes (M7-7.5) occur frequently here)

17 Nankai-Mie Earthquake

18 Yoshino Earthquake

19 Tonankai Earthquake

20 Mikawa Earthquake

21 Kita-Izu Earthquake

22 Kanto Earthquake

23 Boso-Oki Earthquake

24 Fukushima-Oki Earthquake(Earthquakes (M7-7.5) occur frequently here)

25 Sanriku-Oki Earthquake

26 Tokachi-Oki (1968) Earthquake

27 Tokachi-Oki (1952) Earthquake

28 Kushiro-Oki Earthquake

29 Hokkaido Toho-Oki Earthquake

Figure 5:Destructive Earthquakes Occurring in Japan

(3)The "seismic scale" of the Meteorology Agency

We use "seismic intensity' in Japan to measure the strength of an earthquake and the regional situation.

Formerly, detailed research over a long period of time was necessary

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