Tokyo Area Earthquakes
It is estimated by Japanese scientists that an earthquake of Magnitude 6.7 to 7.2 will occur between 2007 and 2036 within a continental plate in a southern region of the Kanto Plain, where Tokyo is situated, at a probability of 70%.
Put simply the great city Tokyo can be hit by a big inland earthquake most probably at a certain moment in next 20 years.
In this case, Tokyo is expected to lose 850,000 buildings and houses due to collapse and fires and have 11,000 deaths and 210,000 injured persons; in addition seven million citizens will be evacuated. As roughly 35 million Japanese live in the areas on the Kanto Plain around Tokyo Prefecture, such an earthquake can paralyze not only capital Tokyo but also entire Japan.
The Japanese Government has specified following five past earthquakes, with a magnitude of a certain level (M7 or so), which occurred after 1885 at the depth of 30 km to 80 km in the southern Kanto Plain as examples of the southern Kanto inland earthquake within the range of 100 km of Tokyo.
Local Earthquakes:
Year Epicenter Magnitude Depth Casualties
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1894 Around Tokyo Bay M7 80 km 31 deaths, 200 injured
1895 Ibaraki Pref. M7.2 60 km 9 deaths, 70 injured
1921 Ibaraki Pref. M7 60 km none
1922 Uraga Channel M6.8 71 km 2 deaths, 20+ injured
1987 Pacific off Chiba M6.7 50 km 2 deaths, 160+ injured
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Indeed these past inland earthquakes did not cause a great number of deaths. But if it should happen directly under the Tokyo metropolitan area, it could cause such casualties as 11,000 deaths.
What is worse, if an earthquake of the plate boundary type should happen instead, casualties would be all the more larger. An earthquake of M8 or so which took place in 1923 around Sagami Bay, 70 km southwest of Tokyo, took 110,000 lives while wounding 110,000 people mostly in Tokyo City. (It is called the 1923 Great Kanto Earthquake.) But this huge earthquake is regraded as a plate boundary type and not as a local type.
Plate Boundary Type:
Year Epicenter Magnitude Depth Casualties
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1703 Tip of Boso Peninsula M8.2 23 km 10,000 deaths, many injured
(Nojimazaki, Chiba)
1923 Sagami Bay M8 23 km 110,000 deaths, 110,000 injured
[Great Kanto Earthquake]
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Further there is one big earthquake which occurred 160 years ago and caused many casualties, but it is not categorized in either type:
Year Epicenter Magnitude Depth Casualties
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1855 Tokyo Bay M7.2 ?? 9,000 deaths, many injured
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In conclusion, any time Tokyo citizens can be victims of a big earthquake of any sort
That is why Olympics should not be held in Tokyo in 2020, since the nuclear accident in Fukushima Daiichi is yet to be completely fixed though it was triggered by an M9.0 earthquakes which was set off in the Pacific 500 km northeast of Tokyo.
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Joh 8:29 And he that sent me is with me: the Father hath not left me alone; for I do always those things that please him.