Background
Kiyo-o Wadachi was born on September 8, 1902 in Nagoya, Japan.
Kiyo-o Wadachi was born on September 8, 1902 in Nagoya, Japan.
Kiyoo Wadati was 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.