1923 Great Kantō earthquake collapsed due to urbanization. The 1923 earthquake led to record-high morbidity due to unsanitary conditions following the earthquake, and it prompted the establishment of antityphoid measures and the building of urban infrastructure. The Honda Point Disaster on the United States west coast, in which seven US Navy destroyers ran aground and 23 lives were lost, has been attributed to navigational errors caused by unusual currents set up by the earthquake in Japan. Beginning in 1960, every September 1 is designated as Disaster Prevention Day to commemorate the earthquake and remind people of the importance of preparedness, as August and September
Kanto (music) and Darulelhan (Istanbul Conservatory of Music) had trained musicians that turned out to work as kanto artists. Before the 1930s, Western lifestyle and western art had put pressure on the traditional Turkish formats which were marginalized. The operetta, the tango and later the charleston, and the foxtrot overshadowed kanto. Kanto's popularity began to fade, the centers of entertainment shifted and the theaters of Galata and Direklerarası were eventually closed. Turkish female artists who were not receptive to kanto's typical ribaldry chose to turn away from it. The kanto singers of this period were also composers. The songs had simple melodies