CHRONOLOGY

2011 Great East Japan Earthquake a forecast repeat of the Jogan Earthquake 869 Tepco had ignored the forecast
1923 Great Kanto Earthquake and post War depression impacts roll forward by BoJ easy money policy until 1927

 

GLOSSARY

earthquake acceleration ground acceleration generated in ms^-2 units shindo intensity 1 - 7 with one interval being 10^0.5 and 7 being 1G (= 10ms^-2)
earthquake energy energy released on the Moment Magnitude scale new scale replaced Richter with one interval 10^1.5 constant at high magnitudes
magnitude measure of energy liberated by earthquake Moment Magnitude scale not connected to ground acceleration cf shindo
shindo earthquake ground acceleration scale 1 - 7 at specific locations often confused with earthquake energy scale magnitude
JR Central with the maglev Chuo Shinkansen JPY10tr+ project a matter of national policy given the Tokai Earthquake probability cf parastatal
kishocho Meteorological Agency Meteorological Office functions + earthquake monitoring and tsunami warnings
Meteorological Agency kishocho has weather forecasting plus earthquake monitoring and tsunami warnings
Richter scale still so termed the Hanks Kanamori scale Moment Magnitude energy released by the earthquake measured as the displacement work done

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