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Kiyoo Wadati (和達 清夫, Wadachi Kiyoo, September 8, 1902 – January 5, 1995) was an early seismologist at the Central Meteorological Observatory of Japan (now known as the Japan Meteorological Agency), researching deep (subduction zone) earthquakes. His name is attached to the Wadati–Benioff zone. It was Wadati's 1928 paper on shallow and deep earthquakes, comparing maximum below surface displacement against distance from the epicentre, which led Charles Richter to develop his earthquake magnitude scale in 1935.[1]

Kiyoo Wadati
和達 清夫
Kiyoo Wadachi 01.jpg
BornSeptember 8, 1902
Nagoya, Japan
DiedJanuary 5, 1995 (1995-01-06) (aged 92)
Tokyo, Japan
Alma materImperial University of Tokyo
Known forWadati–Benioff zone
Scientific career
InstitutionsCentral Meteorological Observatory
InfluencesCharles Richter

See alsoEdit


  1. ^ Suzuki, Yasumoto (2008). "Wadati, Kiyoo". Complete Dictionary of Scientific Biography. 25. Detroit: Charles Scribner's Sons. pp. 199–201. Retrieved 7 September 2012.

External linksEdit