In fall 1923 Omori attended the Second Pan-Pacific Science Congress in Australia, where he and Edward Pigot, the director of the observatory at Riverview College in Sydney, Australia observed a seismograph recording the major great Kantō earthquake which destroyed Yokohama and Tokyo on 1 September 1923, killing about 140,000 and leaving 1.9 million people homeless.
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Omori continued his observations south into the Eel River Valley, stopped in Ferndale, California and noted a giant landslide south of Centerville at False Cape which covered the former coast road and created a new promontory into the Pacific Ocean as well as damages to local property and buildings.
Takao Ōmori | Takahiro Omori | Ōmori-Kinjōgakuin-mae Station | Ōmori |